NSD family inhibitors and methods of treatment therewith

ABSTRACT

Provided herein are small molecule inhibitors of NSD1, NSD2 and/or NSD3 activity, and methods of use thereof for the treatment of disease, including leukemia, breast cancer, osteosarcoma, lung and prostate cancers and other solid tumors as well as other diseases dependent on the activity of NSD1, NSD2 and/or NSD3.

CROSS-REFERENCE TO RELATED APPLICATION

The present invention claims the priority benefit of U.S. Provisional Patent Applications 62/595,616, filed Dec. 7, 2017, and 62/595,617, filed Dec. 7, 2017, each of which are incorporated by reference in its entirety.

FIELD

Provided herein are small molecule inhibitors of NSD1, NSD2 and/or NSD3 activity, and methods of use thereof for the treatment of disease, including leukemia, breast cancer, osteosarcoma, lung and prostate cancers and other solid tumors as well as other diseases dependent on the activity of NSD1, NSD2 and/or NSD3.

BACKGROUND

Nuclear Receptor Binding SET Domain Protein 1 (NSD1) is a member of nuclear receptor binding SET domain (NSD) family of proteins. This family contains three methyltransferases: NSD1, NSD2 (also called MMSET/WHSC1) and NSD3 (WHSC1L1), which are key enzymes involved in di-methylation of H3K36 (Refs. 2, 3; incorporated by reference in their entireties), a histone mark that is most commonly associated with the transcription of active euchromatin (Ref. 2; incorporated by reference in its entirety). Growing number of studies link NSD methyltransferases to a variety of diseases and cancers (Ref. 6; incorporated by reference in its entirety). Translocation of NSD1 leading to Nup98-NSD1 fusion protein has been found in acute leukemia (Refs. 1, 7-10; incorporated by reference in their entireties), and activity of NSD1 has been implicated in lung (Ref. 11; incorporated by reference in its entirety)] and prostate cancers (Ref. 12; incorporated by reference in its entirety). NSD2/MMSET is overexpressed in a variety of cancers (Refs. 13, 14; incorporated by reference in their entireties), and the t(4;14)(p16;q23) translocation involving NSD2 is found in a subgroup of multiple myeloma patients with very poor prognosis (Refs. 15, 16; incorporated by reference in their entireties). In addition, NSD2 is expressed at high levels in metastatic prostate cancer and knockdown of NSD2 by shRNA reduces cell proliferation and invasion in prostate cancer cells (Ref. 17; incorporated by reference in its entirety). Furthermore, amplifications of NSD3 are observed in breast cancers (Ref. 18; incorporated by reference in its entirety), osteosarcoma, and NSD3 fusion transcripts were found in hematological malignancies (Ref. 19; incorporated by reference in its entirety). The need to develop inhibitors of the NSD family of HMT-ases has been emphasized in several reports (Ref. 20-22; incorporated by reference in their entireties).

Translocation t(5;11)(q35;p15.5) creates a fusion of Nucleoporin 98 (Nup98) gene with NSD1 and is found in acute myeloid leukemia (AML) patients with very poor prognosis (Refs. 1, 7-10; incorporated by reference in its entirety). Analysis of a large cohort of leukemia patients revealed that Nup98-NSD1 translocation is present in 16% of cytogenetically normal pediatric AML patients and in 2% adult AMLs (FIG. 1A,B) (Ref. 1; incorporated by reference in its entirety). The presence of Nup98-NSD1 translocation confers a poor outcome and despite intensive treatment, AML patients with Nup98-NSD1 are refractory to induction chemotherapy or relapse within first year of diagnosis (Ref. 1; incorporated by reference in its entirety), emphasizing the urgent need for new therapeutics.

Nup98-NSD1 is a very potent oncogene capable of inducing leukemia in vivo in mice (Ref. 5; incorporated by reference in its entirety). Interestingly, more than 70% of patients with Nup98-NSD1 have co-existing FLT3-ITD activating mutations (Ref. 4; incorporated by reference in its entirety). This finding led to the development of aggressive mice model of Nup98-NSD1/FLT3-ITD leukemia (FIG. 1C). Because of short latency, the Nup98-NSD1/FLT3-ITD model is suitable for efficacy studies to test NSD1 inhibitors.

Transforming properties of Nup98-NSD1 oncogene have been extensively characterized (Ref. 5; incorporated by reference in its entirety). Transduction with Nup98-NSD1 immortalizes bone marrow progenitor cells, sustains self-renewal and up-regulates expression of Hox-A cluster genes and Meis1 (Ref. 5; incorporated by reference in its entirety). Mechanistically, Nup98-NSD1 binds genomic elements adjacent to HoxA7 and HoxA9 and maintains histone H3K36 di-methylation. Deletion of SET domain or point mutations abrogating the catalytic activity of SET domain abolished transforming potential of Nup98-NSD1 (FIG. 1D), demonstrating that the oncogenic activity of Nup98-NSD1 is dependent on the histone-methyltransferase activity of NSD1 SET domain.

SUMMARY

Provided herein are small molecule inhibitors of NSD1, NSD2 and/or NSD3 activity, and methods of use thereof for the treatment of disease, including leukemia, breast cancer, osteosarcoma, lung and prostate cancers and other solid tumors as well as other diseases dependent on the activity of NSD1, NSD2 and/or NSD3.

In some embodiments, provided herein are compounds comprising a structure of Formula (I):

or a salt thereof;

wherein X is CH₂ or NH;

wherein R² is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁴ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, haloalkyl, amide, cyano, sulfonyl, phosphine oxide, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁵ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁶ is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, hydroxy, alkoxy, amine, alkylamine, alkenamine, aklynamine, thiol, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, thiocyanate, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof; and

wherein R⁷ is H, D, F, OH, NH₂, CH₃;

In some embodiments, provided herein are compounds comprising a structure of Formula (IIa):

or a salt thereof;

wherein X is CH₂ or NH;

wherein R² is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁴ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, haloalkyl, amide, cyano, sulfonyl, phosphine oxide, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁵ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein L¹ and L² are independently 1-8 member aliphatic carbon linkers, optionally comprising one or more heteroatoms (e.g., O, N, or S) and/or one or more double or triple bonds; L¹ or L² may be present or absent.

wherein A is an aryl, heteroaryl (e.g., monocyclic (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.) bicyclic, etc.), cycloalkyl (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.), or heterocycle (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.); see Table 1 for examples of ring structures;

wherein A is unsubstituted or substituted (e.g., one or more alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof)

wherein Y is a Michael acceptor (e.g., propenal, 3-buten-2-one, acrylamide, vinyl sulfonamide, propynamide, ethyl propenoate, propenanamide, propenenitrile, nitroethylene, etc.); Y may be present or absent

wherein R⁷ is H, D, F, OH, NH₂, CH₃.

In some embodiments, provided herein are compounds comprising a structure of Formula (IIb):

or a salt thereof;

wherein X is CH₂ or NH;

wherein R² is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁴ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, haloalkyl, amide, cyano, sulfonyl, phosphine oxide, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁵ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein Z is NH, S, O, CH₂, or is absent (e.g., a direct covalent bond between A and terminal CH₂ group of the scaffold);

wherein A is an aryl, heteroaryl (e.g., monocyclic (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.) bicyclic, etc.), cycloalkyl (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.), or heterocycle (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.); see Table 1 for examples of ring structures;

wherein A is unsubstituted or substituted (e.g., one or more alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof)

wherein L and is a 1-8 member aliphatic carbon linker, optionally comprising one or more heteroatoms (e.g., O, N, or S) and/or one or more double or triple bonds; L may be present or absent;

wherein Y is a Michael acceptor (e.g., propenal, 3-buten-2-one, acrylamide, vinyl sulfonamide, propynamide, ethyl propenoate, propenanamide, propenenitrile, nitroethylene, etc.); Y may be present or absent

wherein R⁷ is H, D, F, OH, NH₂, CH₃.

In some embodiments, provided herein are compounds comprising a structure of Formula (IIc):

or a salt thereof;

wherein X is CH₂ or NH;

wherein R² is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁴ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, haloalkyl, amide, cyano, sulfonyl, phosphine oxide, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁵ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein Z is NH, S, O, CH₂, or is absent (e.g., a direct covalent bond between A and terminal CH₂ group of the scaffold);

wherein R⁸ is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein L is a 1-8 member aliphatic carbon linker, optionally comprising one or more heteroatoms (e.g., O, N, or S) and/or one or more double or triple bonds; L may be present or absent

wherein Y is a Michael acceptor (e.g., propenal, 3-buten-2-one, acrylamide, vinyl sulfonamide, propynamide, ethyl propenoate, propenanamide, propenenitrile, nitroethylene, etc.); Y may be present or absent

wherein R⁷ is H, D, F, OH, NH₂, CH₃.

In some embodiments, provided herein are compounds comprising a structure of Formula (IId):

or a salt thereof;

wherein X is CH₂ or NH;

wherein R² is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁴ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, haloalkyl, amide, cyano, sulfonyl, phosphine oxide, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁵ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein Z is NH, S, O, CH₂, or is absent (e.g., a direct covalent bond between A and terminal CH₂ group of the scaffold);

wherein A is an aryl, heteroaryl (e.g., monocyclic (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.) bicyclic, etc.), cycloalkyl (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.), or heterocycle (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.); see Table 1 for examples of ring structures;

wherein A is unsubstituted or substituted (e.g., one or more alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof)

wherein L is absent (e.g., a direct covalent bond between A and E), or is a 1-8 member aliphatic carbon linker, optionally comprising one or more heteroatoms (e.g., O, N, or S) and/or one or more double or triple bonds;

wherein E is an aryl, heteroaryl (e.g., monocyclic (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.) bicyclic, etc.), cycloalkyl (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.), or heterocycle (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.);

wherein E is unsubstituted or substituted (e.g., one or more alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof)

wherein Y is a Michael acceptor (e.g., propenal, 3-buten-2-one, acrylamide, vinyl sulfonamide, propynamide, ethyl propenoate, propenanamide, propenenitrile, nitroethylene, etc.);

wherein R⁷ is H, D, F, OH, NH₂, CH₃.

In some embodiments, provided herein are compounds comprising a structure of Formula (IIe):

or a salt thereof;

wherein X is CH₂ or NH;

wherein R² is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁴ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, haloalkyl, amide, cyano, sulfonyl, phosphine oxide, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁵ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein Z is NH, S, O, CH₂, or is absent (e.g., a direct covalent bond);

wherein R² is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein L and is a 1-8 member aliphatic carbon linker, optionally comprising one or more heteroatoms (e.g., O, N, or S) and/or one or more double or triple bonds;

wherein A is an aryl, heteroaryl (e.g., monocyclic (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.) bicyclic, etc.), cycloalkyl (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.), or heterocycle (e.g., 4-member ring, 5-member ring, 6-member ring, 7-member ring, etc.); see Table 1 for examples of ring structures;

wherein A is unsubstituted or substituted (e.g., one or more alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof)

wherein Y is a Michael acceptor (e.g., propenal, 3-buten-2-one, acrylamide, vinyl sulfonamide, propynamide, ethyl propenoate, propenanamide, propenenitrile, nitroethylene, etc.);

wherein R⁷ is H, D, F, OH, NH₂, CH₃.

In some embodiments, provided herein are compounds comprising a structure of Formula (III):

or a salt thereof;

wherein X is CH₂ or NH;

wherein R² is selected from H, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁴ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, haloalkyl, amide, cyano, sulfonyl, phosphine oxide, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁵ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R⁶ is selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, an aryl ring, a substituted aryl ring, a heteroaryl ring, a substituted heteroaryl ring, and combinations thereof; and

wherein R⁷ is H, D, F, OH, NH₂, CH₃.

In some embodiments, provided herein are compounds comprising a structure of Formula (IV):

or a salt thereof;

wherein X is CH₂ or NH;

wherein G is —(CH₂)_(n)—S—S—(CH₂)_(m)—, wherein n and m are independently 0-6 (e.g., 0, 1, 2, 3, 4, 5, 6, or ranges therebetween);

wherein R^(2a) and R^(2b) are independently selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R^(4a) and R^(4b) are independently selected from H, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, haloalkyl, amide, cyano, sulfonyl, phosphine oxide, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof;

wherein R^(7a) and R^(7b) are H, D, F, OH, NH₂, CH₃.

In some embodiments, for a compound of one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), R² (or R^(2a) or R^(2b)) is a functional group selected from H, alkyl, substituted alkyl, branched alkyl, a substituted branched alkyl (e.g. halogen substituted branched alkyl) alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, substituted amine (e.g. alkyl substituted amine), thioalkyl, halogen, ketone, amide, a substituted amide, cyano, sulfonyl, carboxy, dialkylphosphine oxide, a carbocyclic ring, a substituted carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring (e.g. piperidine, tetrahydropyran, alkylsulfonyl substituted piperidine, sulfonamide substituted piperidine, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof.

In some embodiments, for a compound of one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), R⁴ (or R^(4a) or R^(4b)) is a functional group selected from H, CH₃, (CH₂)₁₋₂CH₃, CH═CH₂, CH═CHCH₃, CH₂CH═CH₂, OH, (CH₂)₁₋₂OH, OCH₃, OCH₂CH₃, CH₂OCH₃, NH₂, (CH₂)₁₋₂NH₂, NHCH₂CH₃, NHCH₃, CH₂NHCH₃, SH, (CH₂)₁₋₂SH, SCH₃, CH₂SCH₃, Cl, Br, F, I, (CH₂)₁₋₂Cl, (CH₂)₁₋₂Br, (CH₂)₁₋₂F, (CH₂)₁₋₂I, CF₃, CFH₂, CF₂H, CBr₃, CCl₃, CI₃, CH₂CF₃, CH₂CBr₃, CH₂CCl₃, CH₂CI₃, CN, and combinations thereof.

In some embodiments, for a compound of one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), R⁵ (or R^(5a) or R^(5b)) is a functional group selected from H, alkyl, substituted alkyl, branched alkyl, a substituted branched alkyl (e.g. halogen substituted branched alkyl) alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, substitutes amine, thioalkyl, halogen, ketone, amide, a substituted amide, cyano, sulfonyl, carboxy, dialkylphosphine oxide, a carbocyclic ring, a substituted carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring (e.g. piperidine, tetrahydropyran, alkylsulfonyl substituted piperidine, sulfonamide substituted piperidine), carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof.

In some embodiments, for a compound of one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), R⁶ (or R^(6a) or R^(6b)) is a functional group selected from H, alkyl, substituted alkyl, branched alkyl, a substituted branched alkyl (e.g. halogen substituted branched alkyl), alkene, substituted alkene, alkyne, substituted alkene, hydroxy, alkoxy, amine, substitutes amine, thioalkyl, thiol, halogen, ketone, amide, a substituted amide, cyano, sulfonyl, carboxy, dialkylphosphine oxide, a carbocyclic ring, saturated ring comprising 3-7 atoms (C, N, O), a substituted carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring (e.g. piperidine, tetrahydropyran, alkylsulfonyl substituted piperidine, sulfonamide substituted piperidine), carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof.

In some embodiments, for a compound of one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), R⁷ (or R^(7a) or R^(7b)) is H. In other embodiments, for a compound of one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), R⁷ (or R^(7a) or R^(7b)) is a functional group selected from H, D, CH₃, (CH₂)CH₃, CH═CH₂, OH, CH₂OH, OCH₃, NH₂, CH₂NH₂, NHCH₃, SH, CH₂SH, SCH₃, Cl, Br, F, I, CH₂Cl, CH₂Br, CH₂F, CH₂I, CF₃, CBr₃, CCl₃, CI₃, CH₂CF₃, CH₂CBr₃, CH₂CCl₃, CH₂CI₃, CN, and combinations thereof.

In some embodiments, any of the R² (or R^(2a) or R^(2b)), R⁴ (or R^(4a) or R^(4b)), R⁵ (or R^(5a) or R^(5b)), and/or R⁷ (or R^(7a) or R^(7b)) substituents, when present in a compound of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) are of one of Formulas (a)-(q):

wherein one of J, Q¹, or J¹, when present, is linked to the benzothiazole ring at the appropriate position (e.g., 2, 5, and/or 6);

wherein each J, J¹, J², J³, and J⁴, when present, are independently selected from the group consisting of: a covalent bond, H, alkyl₁₋₁₅, alkenyl₁₋₆, alkynyl₁₋₆, (CH₂)₀₋₆C(S)NH₂, (CH₂)₀₋₆C(O)NH₂, O, S, NH, (CH₂)₀₋₆C(O)NH(CH₂)₁₋₆, (CH₂)₀₋₆NHC(O)(CH₂)₁₋₆, alkylsulfonyl, sulfonamide, alkylsulfonamide, (CH₂)₀₋₆C(S)NH(CH₂)₁₋₆, (CH₂)₀₋₆O(CH₂)₁₋₆, (CH₂)₀₋₆OH, (CH₂)₀₋₆S(CH₂)₁₋₆, (CH₂)₀₋₆SH, (CH₂)₀₋₆NH(CH₂)₁₋₆, (CH₂)₀₋₆N(CH₂)₁₋₆(CH₂)₁₋₆ (See, e.g., Compound 80), (CH₂)₀₋₆NH₂, (CH₂)₀₋₆SO₂(CH₂)₁₋₆, (CH₂)₀₋₆NHSO₂(CH₂)₁₋₆, (CH₂)₀₋₆SO₂ NH₂, halogen (e.g., F, Cl, Br, or I), haloalkyl (e.g., (CH₂)₀₋₆ CH₂F, (CH₂)₀₋₃CHF(CH₂)₀₋₂CH₃, or similar with Br, Cl, or I), dihaloalkyl (e.g., (CH₂)₀₋₆ CF₂H, (CH₂)₀₋₃ CF₂(CH₂)₀₋₂CH₃, or similar with Br, Cl, or I), trihaloalkyl (e.g., (CH₂)₀₋₆ CF₃, or similar with Br, Cl, or I), alkyl with 1-3 halogens at two or more positions along its length, (CH₂)₁₋₄SP(Ph)₂═S, (CH₂)₀₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋ ₅OH, (CH₂)₀₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋ ₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₃C(O)O(CH₂)₀₋₃, (CH₂)₀₋₃C(S)O(CH₂)₀₋₃, (CH₂)₀₋₃C(O)S(CH₂)₀₋₃, (CH₂)₀₋₃C(S)S(CH₂)₀₋₃, (CH₂)₀₋₃C(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃C(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)S(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)S(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)S(CH₂)₀₋₃, (CH₂O)₁₋₆, and trimethyl methane;

wherein each Q, Q¹, and Q², when present, is independently selected from the group consisting of: furan, benzofuran, isobenzofuran, pyrrole, indole, isoindole, thiophene, benzothiophene, benzo[c]thiophene, imidazole, benzimidazole, purine, pyrazole, indazole, oxazole, benzooxazole, isoxazole, benzisoxazole, thiazole, benzothiazole, benzene, napthalene, pyridine, quinolone, isoquinoline, pyrazine, quinoxaline, pyrimidine, quinazoline, pyridazine, cinnoline, phthalazine, thalidomide, triazine (e.g., 1,2,3-triazine; 1,2,4-triazine; 1,3,5 triazine), thiadiazole, aziridine, thiirane (episulfides), oxirane (ethylene oxide, epoxides), oxaziridine, dioxirane, azetidine, oxetan, thietane, diazetidine, dioxetane, dithietane, pyrrolidine, tetrahydrofuran, thiolane, imidazolidine, pyrazolidine, oxazolidine, isoxazolidine, thiazolidine, isothiazolidine, dioxolane, dithiolane, piperidine, oxane, thiane, pepierazine, morpholine, thiomorpholine, dioxane, dithiane, trioxane, thithiane, azepane, oxepane, thiepane, homopiperazine, azocane, tetrahydropyran, cyclobutene, cyclopentene, cyclohexene, cycloheptene, 1,3-cyclohexadiene, 1,4-cyclohexadiene, 1,5-cyclooctadiene, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, any suitable C³-C⁷ cycloalkyl group, and any of the ring structures depicted in Table 1;

wherein each Q, Q¹, and Q², when present, may display one or more additional J groups at any position on the Q ring;

wherein any alkyl or (CH₂)_(x-y) groups above may be straight or branched;

wherein any alkyl or (CH₂)_(x-y) groups above may additionally comprise OH, ═O, NH₂, CN, dihaloalkyl (e.g., CF₂H), trihaloalkyl (e.g., CF₃), or halogen (e.g., F) substituents at one or more carbons;

wherein the number of hydrogens on terminal positions of the groups above may be adjusted if the group is linked to an additional group (e.g., CH₃ adjusted to CH₂, OH adjusted to O, etc.) or if the group is terminal (e.g., CH₂ adjusted to CH₃, O adjusted to OH, etc.); and

wherein any of formulas (a-q) may additionally comprise a terminal fluorophore (e.g. fluoresceine), solid surface, enzyme ligand (e.g. thalidomide or VHL ligand (e.g., (2S,4R)-1-((S)-2-amino-3,3-dimethylbutanoyl)-4-hydroxy-N-(4-(4-methylthiazol-5-yl)benzyl)pyrrolidine-2-carboxamide, or affinity tag (e.g. biotin).

In some embodiments, any A-ring or E-ring present in a structure may be selected from the exemplary rings depicted in Table 1. Such rings may be attached to the structure at any suitable positions on the exemplary rings.

TABLE 1 Non-limiting examples of Ring A or Ring E structures Ring A Number Ring A Structure A-1

A-2

A-3

A-4

A-5

A-6

A-7

A-8

A-9

A-10

A-11

A-12

A-13

A-14

A-15

A-16

A-17

A-18

A-19

A-20

A-21

A-22

A-23

A-24

A-25

A-26

A-27

A-28

A-29

A-30

A-31

A-32

A-33

A-34

A-35

A-36

A-37

A-38

A-39

A-40

A-41

A-42

A-43

A-44

A-45

A-46

A-47

A-48

A-49

A-50

A-51

A-52

A-53

A-54

A-55

A-56

A-57

A-58

A-59

A-60

A-61

A-62

A-63

A-64

A-65

A-66

A-67

A-68

A-69

A-70

A-71

A-72

A-73

A-74

A-75

A-76

A-77

A-78

A-79

A-80

A-81

A-82

A-83

A-84

A-85

A-86

A-87

A-88

A-89

A-90

A-91

A-92

A-93

A-94

A-95

A-96

A-I

A-I-2

A-I-3

A-I-4

A-I-5

A-I-6

A-I-7

A-I-8

A-I-9

A-I-10

A-I-11

A-I-12

A-I-13

A-I-14

A-I-15

A-I-16

A-I-17

A-I-18

A-I-19

A-I-20

A-I-21

A-I-22

A-I-23

A-I-24

A-II

A-II-2

A-II-3

A-II-4

A-II-5

A-II-6

A-II-7

A-II-8

A-II-9

A-II-10

A-II-11

A-II-12

A-II-13

A-II-14

A-II-15

A-II-16

A-II-17

A-II-18

A-II-19

A-II-20

A-II-21

A-II-22

A-II-23

A-II-24

A-II-25

A-II-26

A-II-27

A-II-28

A-II-29

A-II-30

A-II-31

A-II-32

A-II-33

A-II-34

A-II-35

A-II-36

A-II-37

A-II-38

A-II-39

A-II-40

A-II-41

A-II-42

A-II-43

A-III

A-III-2

A-III-3

A-III-4

A-III-5

A-III-6

A-III-7

A-III-8

A-III-9

A-III-10

A-III-11

A-III-12

A-III-13

A-IV

A-IV-2

A-IV-3

A-IV-4

A-IV-5

A-IV-6

A-IV-7

A-IV-8

A-IV-9

A-IV-10

A-IV-11

A-IV-12

A-IV-13

A-IV-14

A-IV-15

A-IV-16

A-IV-17

A-IV-18

A-IV-19

A-IV-20

A-IV-21

A-IV-22

A-IV-23

A-IV-24

*wherein R, when present on a structure of Table 1, is any suitable substituent described herein, such as, alkyl, substituted alkyl, hydroxy, alkoxy, amine, alkylamine, thioalkyl, halogen, ketone, amide, cyano, sulfonyl, phosphine oxide (e.g., dialkylphosphine oxide), a carbocyclic ring, an aromatic ring, a substituted aromatic ring, a heterocyclic aromatic ring, a substituted heterocyclic aromatic ring, a substituted or non-substituted heterocyclic non-aromatic ring, carbocyclic or heterocyclic aromatic ring fused to another aromatic ring, a hydrogen bond donor, a hydrogen bond acceptor, and combinations thereof. **wherein Z, when present on a structure of Table 1, is N (or NH), CH (or CH₂), O, or S, when suitable for the selected structure.

An A-ring and/or E-ring may, in some embodiments, comprise a multi-ring system, such as A-I through A-IV-24 depicted in Table 1. Examples of compounds comprising a bicyclic A-ring include compounds 274, 275, and 306-311. In some embodiments, compounds within the scope herein may comprise the bicyclic A-rings of Compounds 274, 275, and 306-311. Such bicyclic rings may be attached to the structure at any suitable positions on the exemplary rings.

In some embodiments, any A-ring or E-ring present in a structure may be further substituted at any position(s), for example, with one or more function groups selected from the list consisting of alkyl₁₋₁₅, alkenyl₁₋₆, alkynyl₁₋₆, (CH₂)₀₋₆C(S)NH₂, (CH₂)₀₋₆C(O)NH₂, O, S, NH, (CH₂)₀₋₆C(O)NH(CH₂)₁₋₆, (CH₂)₀₋₆NHC(O)(CH₂)₁₋₆, alkylsulfonyl, sulfonamide, alkylsulfonamide, (CH₂)₀₋₆C(S)NH(CH₂)₁₋₆, (CH₂)₀₋₆O(CH₂)₁₋₆, (CH₂)₀₋₆OH, (CH₂)₀₋₆S(CH₂)₁₋₆, (CH₂)₀₋₆SH, (CH₂)₀₋₆NH(CH₂)₁₋₆, (CH₂)₀₋₆N(CH₂)₁₋₆(CH₂)₁₋₆ (See, e.g., Compound 80), (CH₂)₀₋₆NH₂, (CH₂)₀₋₆SO₂(CH₂)₁₋₆, (CH₂)₀₋₆NHSO₂(CH₂)₁₋₆, (CH₂)₀₋₆SO₂ NH₂, halogen (e.g., F, Cl, Br, or I), haloalkyl (e.g., (CH₂)₀₋₆ CH₂F, (CH₂)₀₋₃CHF(CH₂)₀₋₂CH₃, or similar with Br, Cl, or I), dihaloalkyl (e.g., (CH₂)₀₋₆ CF₂H, (CH₂)₀₋₃ CF₂(CH₂)₀₋₂CH₃, or similar with Br, Cl, or I), trihaloalkyl (e.g., (CH₂)₀₋₆ CF₃, or similar with Br, Cl, or I), alkyl with 1-3 halogens at two or more positions along its length, (CH₂)₁₋₄SP(Ph)₂═S, (CH₂)₀₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋ ₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋ ₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋ ₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋ ₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋ ₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₃C(O)O(CH₂)₀₋₃, (CH₂)₀₋₃C(S)O(CH₂)₀₋₃, (CH₂)₀₋₃C(O)S(CH₂)₀₋₃, (CH₂)₀₋₃C(S)S(CH₂)₀₋₃, (CH₂)₀₋₃C(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃C(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)S(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)S(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)S(CH₂)₀₋₃, (CH₂O)₁₋₆, and trimethyl methane.

In some embodiments, the compound is selected from any of the compounds depicted in Table 2. In some embodiments, a compound is of one or Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) and displays any suitable combination of the substituents depicted in the compounds of Table 2.

In some embodiments, provided herein are pharmaceutical compositions comprising a compound of any one of the preceding claims and a pharmaceutically acceptable carrier. In some embodiments, the pharmaceutical composition is formulated for oral administration. In some embodiments, the pharmaceutical composition is formulated for injection.

In some embodiments, provided herein are methods of inhibiting the activity of NSD1, NSD2 or NSD3 comprising contacting NSD1, NSD2 or NSD3 with an effective amount of a compound described herein. In some embodiments, contacting comprises contacting a cell that expresses NSD1, NSD2 or NSD3.

In some embodiments, provided herein are methods of treating a disease, comprising administering to a subject a pharmaceutical composition described herein in an amount effective to inhibit the activity of NSD1, NSD2 or NSD3. In some embodiments, the disease is a cancer. In some embodiments, the disease is a proliferative disorder. In some embodiments, the pharmaceutical composition is co-administered with an additional cancer therapeutic. In some embodiments, the subject is a human.

In some embodiments, provided herein is the use of a compound described herein. In some embodiments, provided herein is the use of a compound described herein for inhibiting NSD1, NSD2 or NSD3 activity. In some embodiments, provided herein is the use of a compound described herein for the treatment of a disease (e.g., cancer).

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1. Nup98-NSD1 is a potent oncogene expressed in AML patients with poor prognosis. Incidence of Nup98-NSD1 leukemia in pediatric (A) and adult (B) AML (Ref. 1; incorporated by reference in its entirety). (C) FLT3-ITD cooperates with Nup98-NSD1 and accelerates development of leukemia in mice (Ref. 4; incorporated by reference in its entirety). (D) Point mutations in NSD1 SET domain abolish transforming properties of Nup98-NSD1 (Ref. 5; incorporated by reference in its entirety).

FIG. 2A-B. A. Irreversible binding of 151 to NSD1 detected by MS. 10 μM 151 was incubated with NSD1 for 20 h. B. HSQC spectrum of 150 μM NSD1 with 300 μM 151. Several perturbed residues are labeled, including Cys2062.

FIG. 3A-B. Compound 159 binds covalently to NSD1 and engages NSD1 in cells. A. Mass spectrometry experiment showing covalent engagement of NSD1 by 159. 6 μM of 159 was incubated with 1 mM of NSD1 SET domain for 8 hours. B. CETSA assay showing stabilization of NSD1 (1753-2095 fragment) by treatment of HeLa cells with 5 μM 159.

FIG. 4. MTT assay showing time-dependent (3, 7 and 10 days) growth inhibition of Nup98-NSD1 cells by 159 (left). 159 does not inhibit proliferation of control HM-2 cells (right).

FIG. 5A-B. Mechanism of action of 159 in cells. A. Gene expression analysis using qRT-PCR for Nup98-NSD1 cells treated with 159 for 4 days. B. Cytospins showing differentiation of Nup98-NSD1 cells induced by 159.

FIG. 6A-F. Pharmacokinetics and efficacy of 159 in Nup98-NSD1 leukemia model. A. Pharmacokinetics studies in mice treated with 25 mg/kg of 159 using I.P. administration. B. Efficacy in Nup98-NSD1 subcutaneous model. Mice were treated with 25 mg/kg q.d., I.P. C. Representative tumors from vehicle and 159 treated mice. D. Treatment reduced expression of Hoxa7 in tumors from 159 treated mice. E. Immuno-histochemistry analysis of H3K36me2 level in tumor samples of mice treated with vehicle (top) and 159 (bottom). Strong reduction of H3K36me2 level is observed. F. Body weight of 159 treated animals.

FIG. 7. Mass spectrometry data showing covalent engagement of 198 with NSD1, NSD2 and NSD3. Asterisk denotes covalent protein adduct with 198.

FIG. 8. Activity of NSD inhibitors in breast cancer cell lines. A. 7 days treatment MTT viability data for cpd 230 in MCF7 (GI50=1.5 uM), ZR-57-1 (GI50=100 nM) and MDA-MB-468 (35 nM). B. 7 days treatment viability data for cpd 225 in MCF7 (487 nM), ZR-75-1 (53 NM), SUM44 (341 NM), MDA-MB-468 (GI50=31 NM).

DEFINITIONS

Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of embodiments described herein, some preferred methods, compositions, devices, and materials are described herein. However, before the present materials and methods are described, it is to be understood that this invention is not limited to the particular molecules, compositions, methodologies or protocols herein described, as these may vary in accordance with routine experimentation and optimization. It is also to be understood that the terminology used in the description is for the purpose of describing the particular versions or embodiments only, and is not intended to limit the scope of the embodiments described herein.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. However, in case of conflict, the present specification, including definitions, will control. Accordingly, in the context of the embodiments described herein, the following definitions apply.

As used herein and in the appended claims, the singular forms “a”, “an” and “the” include plural reference unless the context clearly dictates otherwise. Thus, for example, reference to “an NSD1, NSD2 or NSD3 inhibitor” is a reference to one or more NSD1, NSD2 or NSD3 inhibitors and equivalents thereof known to those skilled in the art, and so forth.

As used herein, the term “comprise” and linguistic variations thereof denote the presence of recited feature(s), element(s), method step(s), etc. without the exclusion of the presence of additional feature(s), element(s), method step(s), etc. Conversely, the term “consisting of” and linguistic variations thereof, denotes the presence of recited feature(s), element(s), method step(s), etc. and excludes any unrecited feature(s), element(s), method step(s), etc., except for ordinarily-associated impurities. The phrase “consisting essentially of” denotes the recited feature(s), element(s), method step(s), etc. and any additional feature(s), element(s), method step(s), etc. that do not materially affect the basic nature of the composition, system, or method. Many embodiments herein are described using open “comprising” language. Such embodiments encompass multiple closed “consisting of” and/or “consisting essentially of” embodiments, which may alternatively be claimed or described using such language.

All chemical names of substituents should be interpreted in light of IUPAC and/or a modified format in which functional groups within a substituent are read in the order in which they branch from the scaffold or main structure. For example, in the modified nomenclature, methyl-sulfonyl-propanol refers to CH₂SO₂CH₂CH₂CH₂OH or:

As another example, according to the modified nomenclature, a methyl-amine substituent is:

while an amino-methyl substituent is:

All chemical names of substituents should be interpreted in light of IUPAC and/or the modified nomenclature and with reference to the chemical structures depicted and/or described herein.

As used herein, the term “subject” broadly refers to any animal, including but not limited to, human and non-human animals (e.g., dogs, cats, cows, horses, sheep, poultry, fish, crustaceans, etc.). As used herein, the term “patient” typically refers to a subject that is being treated for a disease or condition.

As used herein, the term “subject at risk for a disease,” for example, “a subject at risk for cancer” refers to a subject with one or more risk factors for developing the disease (e.g., cancer). Depending upon the specific disease, risk factors may include, but are not limited to, gender, age, genetic predisposition, environmental exposures, infections, and previous incidents of diseases, lifestyle, etc.

As used herein, the term “effective amount” refers to the amount of a composition sufficient to effect beneficial or desired results. An effective amount can be administered in one or more administrations, applications or dosages and is not intended to be limited to a particular formulation or administration route.

As used herein, the terms “administration” and “administering” refer to the act of giving a drug, prodrug, or other agent, or therapeutic treatment to a subject or in vivo, in vitro, or ex vivo cells, tissues, and organs. Exemplary routes of administration to the human body can be through space under the arachnoid membrane of the brain or spinal cord (intrathecal), the eyes (ophthalmic), mouth (oral), skin (topical or transdermal), nose (nasal), lungs (inhalant), oral mucosa (buccal), ear, rectal, vaginal, by injection (e.g., intravenously, subcutaneously, intratumorally, intraperitoneally, etc.) and the like.

As used herein, the terms “co-administration” and “co-administering” refer to the administration of at least two agent(s) (e.g., NSD1 inhibitor and one or more additional therapeutics) or therapies to a subject. In some embodiments, the co-administration of two or more agents or therapies is concurrent. In other embodiments, a first agent/therapy is administered prior to a second agent/therapy. Those of skill in the art understand that the formulations and/or routes of administration of the various agents or therapies used may vary. The appropriate dosage for co-administration can be readily determined by one skilled in the art. In some embodiments, when agents or therapies are co-administered, the respective agents or therapies are administered at lower dosages than appropriate for their administration alone. Thus, co-administration is especially desirable in embodiments where the co-administration of the agents or therapies lowers the requisite dosage of a potentially harmful (e.g., toxic) agent(s), and/or when co-administration of two or more agents results in sensitization of a subject to beneficial effects of one of the agents via co-administration of the other agent.

As used herein, the term “pharmaceutical composition” refers to the combination of an active agent with a carrier, inert or active, making the composition especially suitable for diagnostic or therapeutic use in vitro, in vivo or ex vivo.

The terms “pharmaceutically acceptable” or “pharmacologically acceptable,” as used herein, refer to compositions that do not substantially produce adverse reactions, e.g., toxic, allergic, or immunological reactions, when administered to a subject.

As used herein, the term “pharmaceutically acceptable carrier” refers to any of the standard pharmaceutical carriers including, but not limited to, phosphate buffered saline solution, water, emulsions (e.g., such as an oil/water or water/oil emulsions), and various types of wetting agents, any and all solvents, dispersion media, coatings, sodium lauryl sulfate, isotonic and absorption delaying agents, disintigrants (e.g., potato starch or sodium starch glycolate), and the like. The compositions also can include stabilizers and preservatives. For examples of carriers, stabilizers and adjuvants, see, e.g., Martin, Remington's Pharmaceutical Sciences, 15th Ed., Mack Publ. Co., Easton, Pa. (1975), incorporated herein by reference in its entirety.

As used herein, the term “pharmaceutically acceptable salt” refers to any pharmaceutically acceptable salt (e.g., acid or base) of a compound of the present invention which, upon administration to a subject, is capable of providing a compound of this invention or an active metabolite or residue thereof. As is known to those of skill in the art, “salts” of the compounds of the present invention may be derived from inorganic or organic acids and bases. Examples of acids include, but are not limited to, hydrochloric, hydrobromic, sulfuric, nitric, perchloric, fumaric, maleic, phosphoric, glycolic, lactic, salicylic, succinic, toluene-p-sulfonic, tartaric, acetic, citric, methanesulfonic, ethanesulfonic, formic, benzoic, malonic, naphthalene-2-sulfonic, benzenesulfonic acid, and the like. Other acids, such as oxalic, while not in themselves pharmaceutically acceptable, may be employed in the preparation of salts useful as intermediates in obtaining the compounds of the invention and their pharmaceutically acceptable acid addition salts.

Examples of bases include, but are not limited to, alkali metals (e.g., sodium) hydroxides, alkaline earth metals (e.g., magnesium), hydroxides, ammonia, and compounds of formula NW₄ ⁺, wherein W is C₁₋₄ alkyl, and the like.

Examples of salts include, but are not limited to: acetate, adipate, alginate, aspartate, benzoate, benzenesulfonate, bisulfate, butyrate, citrate, camphorate, camphorsulfonate, cyclopentanepropionate, digluconate, dodecylsulfate, ethanesulfonate, fumarate, flucoheptanoate, glycerophosphate, hemisulfate, heptanoate, hexanoate, hydrochloride, hydrobromide, hydroiodide, 2-hydroxyethanesulfonate, lactate, maleate, methanesulfonate, 2-naphthalenesulfonate, nicotinate, oxalate, palmoate, pectinate, persulfate, phenylpropionate, picrate, pivalate, propionate, succinate, tartrate, thiocyanate, tosylate, undecanoate, and the like. Other examples of salts include anions of the compounds of the present invention compounded with a suitable cation such as Na⁺, NH₄ ⁺, and NW₄ ⁺ (wherein W is a C₁₋₄ alkyl group), and the like.

For therapeutic use, salts of the compounds herein are contemplated as being pharmaceutically acceptable. However, salts of acids and bases that are non-pharmaceutically acceptable may also find use, for example, in the preparation or purification of a pharmaceutically acceptable compound.

As used herein, the term “instructions for administering said compound to a subject,” and grammatical equivalents thereof, includes instructions for using the compositions contained in a kit for the treatment of conditions (e.g., providing dosing, route of administration, decision trees for treating physicians for correlating patient-specific characteristics with therapeutic courses of action).

“Amino” refers to the —NH₂ moiety.

“Carbonyl” refers to a moiety of the formula —C(═O)—.

“Carboxy” or “carboxyl” refers to the —CO₂H moiety.

“Cyano” refers to the —CN moiety.

Hydroxy” or “hydroxyl” refers to the —OH moiety.

Imino” refers to the ═NH moiety. Unless stated otherwise specifically in the specification, an imino group is optionally substituted.

“Nitro” refers to the —NO₂ moiety.

“Oxo” refers to the ═O moiety.

“Thioxo” refers to the ═S moiety.

“Acyl” refers to the group —C(═O)R_(a), where R_(a) is selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl (bonded through a ring carbon), heteroalkyl, and heterocyclylalkyl. Unless stated otherwise specifically in the specification, an acyl group is optionally substituted.

“Alkyl” refers to a straight or branched hydrocarbon chain moiety consisting solely of carbon and hydrogen atoms, which is saturated or unsaturated (i.e., contains one or more double and/or triple bonds), having from one to twelve carbon atoms (C₁-C₁₂ alkyl), preferably one to eight carbon atoms (C₁-C₈ alkyl) or one to six carbon atoms (C₁-C₆ alkyl), and which is attached to the rest of the molecule by a single bond, e.g., methyl, ethyl, n-propyl, 1-methylethyl (iso-propyl), n-butyl, n-pentyl, 1,1-dimethylethyl (t-butyl), 3-methylhexyl, 2-methylhexyl, ethenyl, prop-1-enyl, but-1-enyl, pent-1-enyl, penta-1,4-dienyl, ethynyl, propynyl, butynyl, pentynyl, hexynyl, and the like. Alkyl includes alkenyls (one or more carbon-carbon double bonds) and alkynyls (one or more carbon-carbon triple bonds). Unless stated otherwise specifically in the specification, an alkyl group is optionally substituted.

“Alkoxy” refers to a moiety of the formula —OR_(a) where R_(a) is an alkyl group as defined herein containing one to twelve carbon atoms. Unless stated otherwise specifically in the specification, an alkoxy group is optionally substituted.

“Alkylamino” refers to a moiety of the formula —NHR_(a) or —NR_(a)R_(b) where R_(a) and R_(b) are each independently an alkyl group as defined herein containing one to twelve carbon atoms. Unless stated otherwise specifically in the specification, an alkylamino group is optionally substituted.

“Alkylaminoalkyl” refers to an alkyl moiety comprising at least one alkylamino substituent. The alkylamino substituent can be on a tertiary, secondary or primary carbon. Unless stated otherwise specifically in the specification, an alkylaminoalkyl group is optionally substituted.

“Amide” or “amido” refers to a moiety with formula —C(═O)NR_(a)R_(b) or —NR_(a)C(═O) R_(b), where R_(a) and R_(b) are each independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heteroaryl (bonded through a ring carbon), heteroalkyl, and heterocyclylalkyl, each of which moiety may itself be optionally substituted. In some embodiments, it is a C₁-C₄ amido or amide group, which includes the amide carbonyl in the total number of carbons in the group. The R_(a)R_(b) of —NR_(a)R_(b) of the amide may optionally be taken together with the nitrogen to which it is attached to form a 4-, 5-, 6-, or 7-membered ring. Unless stated otherwise specifically in the specification, an amido group is optionally substituted.

“Aminoalkyl” refers to an alkyl moiety comprising at least one amino substituent. The amino substituent can be on a tertiary, secondary or primary carbon. Unless stated otherwise specifically in the specification, an aminoalkyl group is optionally substituted.

“Aminocarbonyl” refers to an amide moiety of the formula —C(═O)NR_(a)R_(b), where R_(a) and R_(b) are each independently H or alkyl. Unless stated otherwise specifically in the specification, an aminocarbonyl group is optionally substituted.

“Aryl” refers to a hydrocarbon ring system moiety comprising 6 to 18 carbon atoms and at least one aromatic ring. For purposes of this invention, the aryl moiety is a monocyclic, bicyclic, tricyclic, or tetracyclic ring system, which may include fused or bridged ring systems. Aryl moieties include, but are not limited to, aceanthrylene, acenaphthylene, acephenanthrylene, anthracene, azulene, benzene, chrysene, fluoranthene, fluorene, as-indacene, s-indacene, indane, indene, naphthalene, phenalene, phenanthrene, pleiadene, pyrene, and triphenylene. Unless stated otherwise specifically in the specification, the term “aryl” or the prefix “ar-” (such as in “aralkyl”) is meant to include aryl groups that are optionally substituted.

“Aralkyl” refers to a moiety of the formula —R_(b)—R_(c) where R_(b) is an alkylene chain as defined herein and R_(c) is one or more aryl moieties as defined herein, for example, benzyl, diphenylmethyl, and the like. Unless stated otherwise specifically in the specification, an aralkyl group is optionally substituted.

“Aralkylamino” refers to a aralkyl-NR_(a)— moiety, where R_(a) is H or alkyl. Unless stated otherwise specifically in the specification, an aralkylamino is optionally substituted.

“Aralkyloxy” refers to an aralkyl-O— moiety. Unless stated otherwise specifically in the specification, an aralkyloxy is optionally substituted.

“Arylamino” refers to a —NR_(a)-aryl moiety, where R_(a) is H or alkyl. Unless stated otherwise specifically in the specification, an arylamino is optionally substituted.

“Aryloxy” refers to an —O-aryl moiety. Unless stated otherwise specifically in the specification, an aryloxy is optionally substituted.

“Bicycloalkyl” refers to a moiety with two cycloalkyl moieties, that have two or more atoms in common. If the cycloalkyl moieties have exactly two adjacent atoms in common they are said to be “fused”. Examples include, but are not limited to, bicyclo[3.1.0]hexyl, perhydronaphthyl, and the like. If the cycloalkyl moieties have more than two atoms in common they are said to be “bridged”. Examples include, but are not limited to, adamantyl, bicyclo[3.2.1]heptyl (“norbornyl”), bicyclo[2.2.2]octyl, and the like. Unless stated otherwise specifically in the specification, a bicycloalkyl is optionally substituted.

“Carboxyalkyl” refers to a moiety of the formula —R_(b)—R_(c) where R_(b) is an alkylene chain as defined herein and R_(c) is a carboxy group as defined herein. Unless stated otherwise specifically in the specification, carboxyalkyl group is optionally substituted.

“Cyanoalkyl” refers to a moiety of the formula —R_(b)—R_(c) where R_(b) is an alkylene chain as defined herein and R_(c) is a cyano group as defined herein. Unless stated otherwise specifically in the specification, a cyanoalkyl group is optionally substituted.

“Carbocycle” or “carbocyclic ring” refers to a saturated or unsaturated, non-aromatic, monocyclic or polycyclic hydrocarbon moiety, which may include fused or bridged ring systems, having from three to fifteen carbon atoms, preferably having from three to ten carbon atoms, including cycloalkyls, cycloalkenyls, etc. “Cycloalkyl” refers to a saturated, non-aromatic, monocyclic or polycyclic hydrocarbon moiety, which may include fused or bridged ring systems, having from three to fifteen carbon atoms, preferably having from three to ten carbon atoms. Monocyclic cycloalkyl moieties include, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cycloheptyl, and cyclooctyl. Polycyclic cycloalkyl moieties include, for example, adamantyl, norbornyl, decalinyl, 7,7-dimethyl-bicyclo[2.2.1]heptanyl, and the like. A “cycloalkenyl” is a cycloalkyl comprising one or more carbon-carbon double bonds within the ring, such as cyclopentenyl and cyclohexenyl. Unless otherwise stated specifically in the specification, a cycloalkyl group is optionally substituted.

“Cycloalkylalkyl” refers to a moiety of the formula —R_(b)R_(d) where R_(b) is an alkylene chain as defined herein and R_(d) is a cycloalkyl moiety as defined herein. Unless stated otherwise specifically in the specification, a cycloalkylalkyl group is optionally substituted.

“Cycloalkylalkylamino” refers to a cycloalkylalkyl-NR_(a)— moiety, where R_(a) is H or alkyl and where the cycloalkylalkyl moiety is attached via a carbon atom to nitrogen, wherein the nitrogen functions as a linker to attach the moiety to the remainder of the molecule. Unless stated otherwise specifically in the specification, a cycloalkylalkylamino is optionally substituted.

“Cycloalkylalkyloxy” refers to a —O-cycloalkylalkyl moiety, where the cycloalkylalkyl moiety is attached via a carbon atom to oxygen, wherein the oxygen functions as a linker to attach the moiety to the remainder of the molecule. Unless stated otherwise specifically in the specification, a cycloalkylalkyloxy is optionally substituted.

“Cycloalkylamino” refers to a —NR_(a)-cycloalkyl moiety, where R_(a) is H or alkyl. Unless stated otherwise specifically in the specification, a cycloalkylamino is optionally substituted.

“Cycloalkyloxy” refers to an —O-cycloalkyl moiety. Unless stated otherwise specifically in the specification, a cycloalkyloxy is optionally substituted.

“Halo” or “halogen” refers to fluoro, chloro, bromo, or iodo.

“Haloalkyl” refers to an alkyl group, as defined herein, that is substituted by one or more halo atoms, as defined herein, e.g., trifluoromethyl, difluoromethyl, fluoromethyl, trichloromethyl, —CH₂CF₃, —CH₂CHF₂, —CH₂CH₂F, —CHFCF₃, —CHFCHF₂, —CHFCH₂F, —CHFCH₃, —CF₂CF₃, —CF₂CHF₂, —CF₂CH₂F, —CF₂CH₃, —CH₂CF₂CH₃, —CH₂CHFCH₃, 3-bromo-2-fluoropropyl, 1,2-dibromoethyl, and the like. Unless stated otherwise specifically in the specification, a haloalkyl group is optionally substituted.

As used herein, the term “heteroatom” or “ring heteroatom” is meant to include any element other than carbon or hydrogen. Preferred heteroatoms are oxygen (O), nitrogen (N), sulfur (S), and phosphorus (P).

“Heteroalkyl,” by itself or in combination with another term, means, unless otherwise stated, a straight or branched chain; monocyclic or polycyclic moiety, which may include fused or bridged ring systems; or any combination thereof, comprising at least one carbon atom and at least one heteroatom, such as O, N, P, Si and S, wherein one or more heteroatoms may be oxidized. Heteroatom(s) may be positioned within the alkyl moiety, e.g., —CH₂—O—CH₂—; at a point of connectivity with the remainder of the molecule, e.g., —SO₂CH(CH₃)CH₂—; or a combination thereof, e.g., —NH₂CH₂CH₂SO₂CH₂—. Unless stated otherwise specifically in the specification, a heteroalkyl group is optionally substituted.

“Heteroaryl” refers to a 5- to 14-membered ring system moiety comprising one to thirteen carbon atoms; one to six heteroatoms such as nitrogen, oxygen, and sulfur; and one or multiple rings wherein at least one ring is aromatic. For purposes of this invention, the heteroaryl group may be a monocyclic, bicyclic, tricyclic, or tetracyclic ring system, which may include fused or bridged ring systems and one or more heteroatoms may be oxidized. Examples include, but are not limited to, azepinyl, acridinyl, benzimidazolyl, benzothiazolyl, benzindolyl, benzodioxolyl, benzofuranyl, benzooxazolyl, benzothiazolyl, benzothiadiazolyl, benzo[b][1,4]dioxepinyl, 1,4-benzodioxanyl, benzonaphthofuranyl, benzoxazolyl, benzodioxolyl, benzodioxinyl, benzopyranyl, benzopyranonyl, benzofuranyl, benzofuranonyl, benzothienyl (benzothiophenyl), benzotriazolyl, benzo[4,6]imidazo[1,2-a]pyridinyl, carbazolyl, cinnolinyl, dibenzofuranyl, dibenzothiophenyl, furanyl, furanonyl, isothiazolyl, imidazolyl, indazolyl, indolyl, indazolyl, isoindolyl, indolinyl, isoindolinyl, isoquinolyl, indolizinyl, isoxazolyl, naphthyridinyl, oxadiazolyl, 2-oxoazepinyl, oxazolyl, oxiranyl, 1-oxidopyridinyl, 1-oxidopyrimidinyl, 1-oxidopyrazinyl, 1-oxidopyridazinyl, 1-phenyl-1H-pyrrolyl, phenazinyl, phenothiazinyl, phenoxazinyl, phthalazinyl, pteridinyl, purinyl, pyrrolyl, pyrazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, quinazolinyl, quinoxalinyl, quinolinyl, quinuclidinyl, isoquinolinyl, tetrahydroquinolinyl, thiazolyl, thiadiazolyl, triazolyl, tetrazolyl, triazinyl, and thiophenyl (i.e., thienyl). Unless stated otherwise specifically in the specification, a heteroaryl group is optionally substituted.

“Heteroarylalkyl” refers to a moiety of the formula —R_(b)R_(f) where R_(b) is an alkylene chain as defined herein and R_(f) is a heteroaryl group as defined herein. Unless stated otherwise specifically in the specification, a heteroarylalkyl group is optionally substituted.

“Heteroarylalkylamino” refers to a heteroarylalkyl-NR_(a)— moiety, where R_(a) is H or alkyl. Unless stated otherwise specifically in the specification, an heteroarylalkylamino is optionally substituted.

“Heteroarylalkyloxy” refers to an heteroarylalkyl-O— moiety. Unless stated otherwise specifically in the specification, a heteroarylalkyloxy is optionally substituted.

“Heteroarylamino” refers to a —NR_(a)-heteroaryl moiety, where R_(a) is H or alkyl. Unless stated otherwise specifically in the specification, a heteroarylamino is optionally substituted.

“Heteroaryloxy” refers to an —O-heteroaryl moiety. Unless stated otherwise specifically in the specification, an heteroaryloxy is optionally substituted.

“Heterobicycloalkyl” refers to a bicycloalkyl structure in which at least one carbon ring atom is replaced with a heteroatom such as oxygen, nitrogen, and sulfur. Unless stated otherwise specifically in the specification, a heterobicycloalkyl is optionally substituted.

“Heterocyclyl” or “heterocyclic ring” refers to a 3- to 18-membered non-aromatic ring which consists of two to twelve carbon atoms and from one to six heteroatoms such as nitrogen, oxygen, and sulfur. Unless stated otherwise specifically in the specification, the heterocyclyl group is a monocyclic, bicyclic, tricyclic, or tetracyclic ring system, which may include fused or bridged ring systems; the heteroatoms may be optionally oxidized; and the heterocyclyl may be unsaturated or saturated. Examples of such heterocyclyl moieties include, but are not limited to, dioxolanyl, thienyl[1,3]dithianyl, decahydroisoquinolyl, imidazolinyl, imidazolidinyl, isothiazolidinyl, isoxazolidinyl, morpholinyl, octahydroindolyl, octahydroisoindolyl, 2-oxopiperazinyl, 2-oxopiperidinyl, 2-oxopyrrolidinyl, oxazolidinyl, piperidinyl, piperazinyl, 4-piperidonyl, pyrrolidinyl, pyrazolidinyl, quinuclidinyl, thiazolidinyl, tetrahydrofuryl, trithianyl, tetrahydropyranyl, thiomorpholinyl, thiamorpholinyl, 1-oxo-thiomorpholinyl, and 1,1-dioxo-thiomorpholinyl. Unless stated otherwise specifically in the specification, a heterocyclyl group is optionally substituted.

“Heterocyclylalkyl” or “heterocycloalkyl” refers to a moiety of the formula —R_(b)R_(e) where R_(b) is an alkylene chain as defined herein and R_(e) is a heterocyclyl moiety as defined herein, and if the heterocyclyl is a nitrogen-containing heterocyclyl, the heterocyclyl is optionally attached to the alkyl moiety at the nitrogen atom. Unless stated otherwise specifically in the specification, a heterocyclylalkyl group is optionally substituted.

“Heterocyclylalkylamino” refers to a heterocyclylalkyl-NR_(a)— moiety, where R_(a) is H or alkyl and where the heterocyclylalkyl moiety is attached via a carbon atom to nitrogen, wherein the nitrogen functions as a linker to attach the moiety to the remainder of the molecule. Unless stated otherwise specifically in the specification, a heterocyclylalkylamino is optionally substituted.

“Heterocyclylalkyloxy” refers to a —O-heterocycloalkyl moiety, where the heterocyclylalkyl moiety is attached via a carbon atom to oxygen, wherein the oxygen functions as a linker to attach the moiety to the remainder of the molecule. Unless stated otherwise specifically in the specification, a heterocyclylalkyloxy is optionally substituted.

“Heterocyclylamino” refers to a —NR_(a)-heterocyclyl moiety, where R_(a) is H or alkyl and where the heterocyclyl moiety is attached via a carbon atom to nitrogen, wherein the nitrogen functions as a linker to attach the moiety to the remainder of the molecule. Unless stated otherwise specifically in the specification, a heterocyclylamino is optionally substituted.

“Heterocyclyloxy” refers to an —O-heterocyclyl moiety, where the heterocyclyl moiety is attached via a carbon atom to oxygen, wherein the oxygen functions as a linker to attach the moiety to the remainder of the molecule. Unless stated otherwise specifically in the specification, a heterocyclyloxy is optionally substituted.

“Hydroxyalkyl” or “hydroxylalkyl” refers to an alkyl group comprising at least one hydroxyl substituent. The —OH substituent may be on a primary, secondary, or tertiary carbon. Unless stated otherwise specifically in the specification, a hydroxylalkyl group is optionally substituted.

“N-heteroaryl” refers to a heteroaryl moiety as defined herein containing at least one nitrogen and where the point of attachment of the heteroaryl moiety to the rest of the molecule is through a nitrogen atom in the heteroaryl ring. Unless stated otherwise specifically in the specification, an N-heteroaryl group is optionally substituted.

“N-heterocyclyl” refers to a heterocyclyl moiety as defined herein containing at least one nitrogen and where the point of attachment of the heterocyclyl moiety to the rest of the molecule is through a nitrogen atom in the heterocyclyl ring. Unless stated otherwise specifically in the specification, a N-heterocyclyl group is optionally substituted.

“Thioalkyl” refers to a moiety of the formula —SR_(a) where R_(a) is an alkyl moiety as defined herein containing one to twelve carbon atoms. Unless stated otherwise specifically in the specification, a thioalkyl group is optionally substituted.

“Alkylene” or “alkylene chain” refers to a straight or branched divalent hydrocarbon chain linking two groups in a molecule, which may be saturated or unsaturated (i.e., contains one or more double and/or triple bonds), and have from one to twelve carbon atoms, preferably one to eight carbon atoms (C₁-C₈ alkylene) or one to six carbon atoms (C₁-C₆ alkylene), e.g., methylene, ethylene, propylene, n-butylene, ethenylene, propenylene, n-butenylene, propynylene, n-butynylene, and the like. The alkylene chain is attached to the rest of the molecule through a single or double bond. The points of attachment of the alkylene chain to the rest of the molecule may be through one carbon, e.g., methylene, or any two carbons within the chain, e.g., —CH₂CH(CH₃)CH₂CH₂—. Unless stated otherwise specifically in the specification, an alkylene chain is optionally substituted.

“Alkylenecarbonyl” refers to a moiety of the formula —C(═O)R_(a)—, where R_(a) is an alkylene chain as defined herein. Unless stated otherwise specifically in the specification, an alkylenecarbonyl is optionally substituted.

“Alkenylene” is an unsaturated alkylene, as defined herein, which comprises one or more carbon-carbon double bonds. Unless stated otherwise specifically in the specification, an alkenylene is optionally substituted.

“Alkenylenecarbonyl” refers to an unsaturated alkylenecarbonyl, as defined herein, which comprises one or more carbon-carbon double bonds. Unless stated otherwise specifically in the specification, an alkenylenecarbonyl is optionally substituted.

“Arylene” refers to a divalent aryl group which links one part of the molecule to another part of the molecule. Unless stated specifically otherwise, an arylene is optionally substituted.

“Heteroalkylene” refers to an alkylene group comprising at least one heteroatom (e.g., N, O or S). In some embodiments, the heteroatom is within the alkylene chain (i.e., the heteroalkylene comprises at least one carbon-heteroatom-carbon bond). In other embodiments, the heteroatom is at a terminus of the alkylene and joins the alkylene to the remainder of the molecule (e.g., M1-H-A-M2, where M1 and M2 are portions of a molecule, H is a heteroatom and A is an alkylene). A heteroalkylene may have both internal and terminal heteroatoms, e.g., —OCH₂CH₂OCH₂CH₂O—. Unless stated otherwise specifically in the specification, a heteroalkylene is optionally substituted.

“Heteroalkylenecarbonyl” refers to a moiety of the formula —C(═O)R_(a)—, where R_(a) is a heteroalkylene chain as defined herein. Unless stated otherwise specifically in the specification, a heteroalkylenecarbonyl is optionally substituted.

“Heteroarylene” refers to a divalent heteroaryl group which links one part of the molecule to another part of the molecule. Unless stated specifically otherwise, a heteroarylene is optionally substituted.

“Heteroarylenecarbonyl” refers to a moiety of the formula —C(═O)R_(a)—, wherein R_(a) is a heteroarylene as defined herein. Unless stated specifically otherwise, a heteroarylenecarbonyl is optionally substituted.

“Heterocyclylalkylene” refers to a divalent heterocyclyl group which links one part of the molecule to another part of the molecule. Unless stated specifically otherwise, a heterocycloalkylene is optionally substituted.

“Heterocyclylalkylenecarbonyl” refers to a moiety of the formula —C(═O)R_(a)—, wherein R_(a) is a heterocycloalkylene as defined herein. Unless stated specifically otherwise, a heterocycloalkylenecarbonyl is optionally substituted.

The term “substituted” used herein refers to replacement of at least one hydrogen atom with any of the above groups (e.g., amino, carboxy, hydroxyl, imino, acyl, alkyl, alkoxy, alkylamino, alkylaminoalkyl, amide, aminoalkyl, aminocarbonyl, aryl, aralkyl, aralkylamino, aralkyloxy, arylamino, aryloxy, bicycloalkyl, carboxyalkyl, cyanoalkyl, cycloalkyl, cycloalkylalkyl, cycloalkylalkylamino, cycloalkylalkyloxy, cycloalkylamino, cycloalkyloxy, halo, haloalkyl, heteroatom, heteroalkyl, heteroaryl, heteroarylalkyl, heteroarylalkylamino, heteroarylalkyloxy, heteroarylamino, heteroaryloxy, heterobicycloalkyl, heterocyclyl, heterocyclylalkyl, heterocyclylalkylamino, heterocyclylalkyloxy, heterocyclylamino, heterocyclyloxy, hydroxyalkyl, N-heteroaryl, N-heterocyclyl, thioalkyl, alkylene, alkylenecarbonyl, alkenylene, alkenylenecarbonyl, arylene, heteroalkylene, heteroalkylenecarbonyl, heteroarylene, heteroarylenecarbonyl, heterocyclylalkylene, and/or heterocyclylalkylenecarbonyl), wherein the at least one hydrogen atom is replaced by a bond to a non-hydrogen atom such as, but not limited to: a halogen atom such as F, Cl, Br, and I; an oxygen atom in groups such as hydroxyl groups, alkoxy groups, and ester groups; a sulfur atom in groups such as thiol groups, thioalkyl groups, sulfone groups such as alkyl sulfone groups, sulfonyl groups such as sulfonamide groups and sulfonylalkyl groups such as sulfonylmethane, and sulfoxide groups such as alkyl sulfoxide groups; a nitrogen atom in groups such as amino, amines, amides, alkylamines, dialkylamines, arylamines, alkylarylamines, diarylamines, N-oxides, imides, and enamines; a silicon atom in groups such as trialkylsilyl groups, dialkylarylsilyl groups, alkyldiarylsilyl groups, and triarylsilyl groups; a phosphorus atom in groups such as dialkylphosphine oxide groups; and other heteroatoms in various other groups. “Substituted” also means any of the above groups in which one or more hydrogen atoms are replaced by a higher-order bond (e.g., a double- or triple-bond) to a carbon atom or a heteroatom such as oxygen in oxo, carbonyl, carboxyl, and ester groups; and nitrogen in groups such as imines, oximes, hydrazones, and nitriles. “Substituted” includes any of the above groups in which one or more hydrogen atoms are replaced with —NR_(g)R_(h), —NR_(g)C(═O)R_(h), —NR_(g)C(═O)NR_(g)R_(h), —NR_(g)C(═O)OR_(h), —NR_(g)SO₂R_(h), —OC(═O)NR_(g)R_(h), —OR_(g), —SR_(g), —SOR_(g), —SO₂R_(g), OSO₂R_(g), —SO₂O R_(g), ═NSO₂R_(g), —SO₂NR_(g)R_(h), —C(═O)R_(g), —C(═O)OR_(g), —C(═O)NR_(g)R_(h), —CH₂SO₂R_(g), or —CH₂SO₂NR_(g)R_(h), where R_(g) and R_(h) are independently hydrogen, alkyl, alkoxy, alkylamino, thioalkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, haloalkyl, heteroalkyl, heterocyclyl, N-heterocyclyl, heterocyclylalkyl, heteroaryl, N-heteroaryl and/or heteroarylalkyl. “Substituted” further means any of the above groups in which one or more hydrogen atoms are replaced by a bond to an amino, carbonyl, carboxy, cyano, hydroxyl, imino, nitro, oxo, thioxo, acyl, alkyl, alkoxy, alkylamino, alkylaminoalkyl, amide, aminoalkyl, aminocarbonyl, aryl, aralkyl, aralkylamino, aralkyloxy, arylamino, aryloxy, bicycloalkyl, carboxyalkyl, cyanoalkyl, cycloalkyl, cycloalkylalkyl, cycloalkylalkylamino, cycloalkylalkyloxy, cycloalkylamino, cycloalkyloxy, halo, haloalkyl, heteroatom, heteroalkyl, heteroaryl, heteroarylalkyl, heteroarylalkylamino, heteroarylalkyloxy, heteroarylamino, heteroaryloxy, heterobicycloalkyl, heterocyclyl, heterocyclylalkyl, heterocyclylalkylamino, heterocyclylalkyloxy, heterocyclylamino, heterocyclyloxy, hydroxyalkyl, N-heteroaryl, N-heterocyclyl, thioalkyl, alkylene, alkylenecarbonyl, alkenylene, alkenylenecarbonyl, arylene, heteroalkylene, heteroalkylenecarbonyl, heteroarylene, heteroarylenecarbonyl, heterocyclylalkylene, heterocyclylalkylenecarbonyl, trimethylsilanyl, dialkylphosphine oxide, —OR^(a), —SR^(a), —OC(O)—R^(a), —N(R^(a))₂, —C(O)R^(a), —C(O)OR^(a), —C(O)N(R^(a))₂, —N(R^(a))C(O)OR^(a), —N(R^(a))C(O)R^(a), —N(R^(a))S(O)_(t)R_(a) (where t is 1 or 2), —S(O)_(t)OR^(a) (where t is 1 or 2), —S(O)_(t)N(R^(a))₂ (where t is 1 or 2), —PO(R^(a))₂, or —PO(OR^(a))₂ group, where each R^(a) is independently hydrogen, alkyl, haloalkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl or heteroarylalkyl group. In addition, each of the foregoing substituents is optionally substituted with one or more of the above substituents. The term “optionally substituted”, as used herein, means that the referenced group (e.g., alkyl, cycloalkyl, etc.) may or may not be substituted with one or more additional group(s).

As used herein, the term “absent” when used in reference to functional group or substituent, particularly in reference to the chemical structure of a compound, means that the particular functional group or substituent is not present in the compound being described. When used in reference to a substituent (e.g., a pendant group, not a linking group), the absence of the substituent typically means that the bond to the substituent is absent and that absence of the bond is compensated for with a H atom. When used in reference to a position within a chain or ring (e.g., a linking group, not a pendant group), the absence of the position typically means that the two positions otherwise connected by the absent position are either (1) directly connected by a covalent bond, or (2) not connected, as will either be apparent from the structure or explicitly indicated.

As used herein, the terms “ring system” and “multiring system” refer to a chemical structure or moiety comprising two or more rings that share at least one bond (and two or more atomic positions). For example, a multiring system comprising a cyclohexane and cyclopentane is:

If an aryl or heteroaryl ring is included in a multiring system, the aromaticity of the ring is maintained, unless described otherwise, for example, a multiring system comprising a benzene and cyclohexane is:

DETAILED DESCRIPTION

Provided herein are small molecule inhibitors of NSD1, NSD2 and/or NSD3 activity and methods of use thereof for the treatment of disease, including leukemia, solid cancers and other diseases dependent on the activity of NSD1, NSD2 and/or NSD3.

Experiments were conducted during development of embodiments herein to develop small molecule inhibitors that block the catalytic activity of NSD1 SET domain, and/or bind to NSD1 SET domain and facilitate its degradation. Such compounds will be effective in, for example, eradicating the Nup98-NSD1 positive leukemic cells, representing an effective therapeutic approach for this aggressive leukemia.

Crystallographic studies of NSD1 and exemplary compounds described herein have defined a small molecule binding site within the SET domain of NSD1. Binding of a small molecule to that binding site blocks the catalytic activity of NSD1. The crystallographic studies reveal that a class of benzothiazole compounds, such as those defined by Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) and/or the exemplary compounds of Table 2, are exceptional well-suited for binding to NSD1. The crystallographic studies also demonstrate several structural constrains placed on the small molecules by the architecture of the pocket within NSD1

For example, the R⁴ substituent binds to an internal small pocket within the protein. As a result of the size constrains imposed by this pocket, only small substituents are accommodated by the pocket. Therefore, in certain embodiments, R⁴ substituents (and R^(4a) and R^(4b) substituents) are small enough to bind within the internal pocket at this position. For example, in some embodiments, R⁴ substituents (and R^(4a) and R^(4b) substituents) are of a length of 10 Å or less (e.g., 10 Å, 9 Å, 8 Å, 7 Å, 6 Å, 5 Å, 4 Å, 3 Å, 2 Å, or less or ranges therebetween (e.g., 2-5 Å), etc.) or a mass of 50 amu or less (e.g., 50 amu, 45 amu, 40 amu, 35 amu, 30 amu, 25 amu, 20 amu, 15 amu, or less, or ranges therebetween (e.g., 15-35 amu), etc.).

Another example of a structural constrain placed on small molecule binders of NSD1 is at the R⁷ substituent. This region of the small molecule binding pocket is highly constrained. Therefore, in some embodiments, R⁷ substituents (and R^(7a) and R^(7b) substituents) are limited to H or D. In other embodiments, R⁷ substituents (and R^(7a) and R^(7b) substituents) are of a length of 5 Å or less (e.g., 5 Å, 4 Å, 3 Å, 2 Å, or less or ranges therebetween (e.g., 2-5 Å), etc.) or a mass of 30 amu or less (e.g., 30 amu, 25 amu, 20 amu, 15 amu, or less, or ranges therebetween).

In contrast to the R⁴ and R⁷, the size and shape of substituents at the R², R⁵, and R⁶ positions are relatively unconstrained by the architecture of the pocket. Therefore, as is described in detail herein, a wide variety of substituents may be present at these positions for compounds within the scope of the invention.

In some embodiments, provided herein are small molecule inhibitors directly targeting the SET domain of NSD1 and blocking its catalytic activity. In experiments conducted during development of embodiments herein, small molecule inhibitors of NSD1 demonstrated anti-proliferative effect in Nup98-NSD1 leukemia cells and downregulate expression of Hoxa9 target gene.

In some embodiments, the compounds described herein find use in the treatment or prevention of disease (e.g., cancer (e.g., leukemia, breast cancer, ovarian cancer, melanoma, prostate cancer, osteosarcoma, lung cancer, thyroid cancer, or metastasis thereof), muscular dystrophy, liver fibrosis, etc.) and/or the alleviation of symptoms associated therewith. In some embodiments, provided herein are pharmaceutical compositions comprising a compound described and/or within the scope herein. In some embodiments, pharmaceutical compositions comprising a compound described and/or within the scope herein are administered to a subject to treat a disease of condition (e.g., cancer (e.g., leukemia, breast cancer, ovarian cancer, melanoma, prostate cancer, osteosarcoma, lung cancer, thyroid cancer, or metastasis thereof), muscular dystrophy, liver fibrosis, etc.).

In some embodiments, provided herein are compounds comprising a structure of Formula (I):

or a salt thereof; wherein X, R², R^(4′) R⁵, R⁶, and R⁷ are independently selected from any suitable substituents (e.g., pendant groups) described herein.

In some embodiments, provided herein are compounds comprising a structure of Formula (IIa):

or a salt thereof;

wherein X, R², R^(4′) R⁵, L¹, A, L², Y, and R⁷ are independently selected from any suitable substituents (e.g., pendant groups) described herein.

In some embodiments, provided herein are compounds comprising a structure of Formula (IIb):

or a salt thereof;

wherein X, R², R^(4′) R⁵, Z, A, L, Y, and R⁷ are independently selected from any suitable substituents (e.g., pendant groups) described herein.

In some embodiments, provided herein are compounds comprising a structure of Formula (IIc):

or a salt thereof; wherein X, R², R^(4′) R⁵, Z, L, Y, R⁷, and R⁸ are independently selected from any suitable substituents (e.g., pendant groups) described herein.

In some embodiments, provided herein are compounds comprising a structure of Formula (IId):

or a salt thereof;

wherein X, R², R^(4′) R⁵, Z, A, L, E, Y, and R⁷ are independently selected from any suitable substituents (e.g., pendant groups) described herein.

In some embodiments, provided herein are compounds comprising a structure of Formula (IIe):

or a salt thereof;

wherein X, R², R^(4′) R⁵, Z, L, A, Y, R⁷, and R⁸ are independently selected from any suitable substituents (e.g., pendant groups) described herein.

In some embodiments, provided herein are compounds comprising a structure of Formula (III):

or a salt thereof;

wherein R², R⁴, R⁵, R⁶, and R⁷ are independently selected from any suitable substituents (e.g., pendant groups) described herein.

In some embodiments, provided herein are compounds comprising a structure of Formula (IV):

or a salt thereof;

wherein G, X, R^(2a), R^(4a), R^(5a), R^(6a), R^(7a), R^(2b), R^(4b), R^(5b), R^(6b), and R^(7b) are independently selected from any suitable substituents (e.g., pendant groups) described herein.

In some embodiments, when rings are present in the compounds described herein, other than the core benzothiazole ring (e.g., A-ring, E-ring, any Q ring, or any other non-aromatic carbocycle, non-aromatic heterocycle, aryl, heteroaryl, or multi-ring system present within one or more of the substituent groups), rings are selected from an optionally substituted 5-membered heteroaryl, an optionally substituted 6-membered aryl, an optionally substituted 6-membered heteroaryl, an optionally substituted 5-membered cycloalkyl, an optionally substituted 6-membered cycloalkyl, an optionally substituted 5-membered carbocycle, an optionally substituted 6-membered carbocycle, an optionally substituted 5-membered non-aromatic heterocycle, or an optionally substituted 6-membered non-aromatic heterocycle. In some embodiments, a ring structure (e.g., A-ring, E-ring, any Q ring, or any other non-aromatic carbocycle, non-aromatic heterocycle, aryl, heteroaryl, or multi-ring system present within one or more of the substituent groups) is selected from the ring structures listed in Table 1. The rings may be linked to the benzothiazole ring or a portion of a substituent at any suitable position of the ring, and may optionally be further substituted.

As noted above, the any substituents present in a compound of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) may be of any suitable chemical functional group, such as:

-   -   single atoms: H, Cl, Br, F, or I;     -   alkyl groups: methyl, ethyl, propyl, butyl, pentyl, hexyl, or         any suitable straight chain or branched C¹-C¹⁰ alkyl group;     -   alkenyl: ethenyl, propenyl, butenyl, pentenyl, hexenyl, or any         suitable C¹-C¹⁰ alkenyl group;     -   alkynyl: ethynyl, propynyl, butynyl, pentynyl, hexynyl, or any         suitable C¹-C¹⁰ alkenyl group;     -   cycloalkyl: cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, or         any suitable C³-C⁷ cycloalkyl group; optionally further         substituted;     -   cycloalkenyl: cyclopropene, cyclobutene, cyclopentene,         cyclohexene, cycloheptene, 1,3-cyclohexadiene,         1,4-cyclohexadiene, 1,5-cyclooctadiene; optionally further         substituted;     -   aryl or heteroaryl: furan, benzofuran, isobenzofuran, pyrrole,         indole, isoindole, thiophene, benzothiophene, benzo[c]thiophene,         imidazole, benzimidazole, purine, pyrazole, indazole, oxazole,         benzooxazole, isoxazole, benzisoxazole, thiazole, benzothiazole,         benzene, napthalene, pyridine, quinolone, isoquinoline,         pyrazine, quinoxaline, pyrimidine, quinazoline, pyridazine,         cinnoline, phthalazine, triazine (e.g., 1,2,3-triazine;         1,2,4-triazine; 1,3,5 triazine), thiadiazole, etc.; optionally         further substituted;     -   non-aromatic heterocyclic rings: aziridine, thiirane         (episulfides), oxirane (ethylene oxide, epoxides), oxaziridine,         dioxirane, azetidine, oxetan, thietane, diazetidine, dioxetane,         dithietane, pyrrolidine, tetrahydrofuran, thiolane,         imidazolidine, pyrazolidine, oxazolidine, isoxazolidine,         thiazolidine, isothiazolidine, dioxolane, dithiolane,         piperidine, oxane, thiane, pepierazine, morpholine,         thiomorpholine, dioxane, dithiane, trioxane, thithiane, azepane,         oxepane, thiepane, homopiperazine, azocane, tetrahydropyran,         etc.;     -   haloalkanes: halomethane (e.g., chloromethane, bromomethane,         fluoromethane, iodomethane), di- and trihalomethane (e.g.,         trichloromethane, tribromomethane, trifluoromethane,         triiodomethane), 1-haloethane, 2-haloethane, 1,2-dihaloethane,         1-halopropane, 2-halopropane, 3-halopropane, 1,2-dihalopropane,         1,3-dihalopropane, 2,3-dihalopropane, 1,2,3-trihalopropane, and         any other suitable combinations of alkanes (or substituted         alkanes) and halogens (e.g., Cl, Br, F, I, etc.), and branched         haloalkanes;     -   alcohols: OH, methanol, ethanol, propanol, butanol, pentanol,         hexanol, cyclic alcohols (e.g., cyclohexanol), aromatic alcohols         (e.g., phenol), or any other suitable combination of an OH         moiety with a second moiety, branched alcohols;     -   ketones: methyl methyl ketone (acetone), methyl ethyl ketone         (butanone), propyl ethyl ketone (pentanone), or any other         suitable combination of alkyl chains with ═O;     -   aldehydes: methanal, ethanal, propanal, butanal, pentanal,         hexanal, or any other suitable combination of alkyl chain with         ═O;     -   carboxylates: methanoate, ethanoate, propanote, butanoate,         pentanoate, hexanoate, or any other suitable combination of         alkyl chain with OO⁻;     -   carboxylic acids: methanoic acid, ethanoic acid, propanoic acid,         butanoic acid, pentanoic acid, hexanoic acid, or any other         suitable combination of alkyl chain with OOH;     -   ethers: methoxy, ethoxy, methylmethoxy, ethylmethoxy, or any         other suitable combination of alkyl chains surrounding an O;     -   amides: methanamide (CONH₂), ethanamide (CH₂CONH₂), propanamide         ((CH₂)₂CONH₂), alkan^(n)amide ((CH₂)_(n)CONH₂), n-methyl         alkan^(n)amide ((CH₂)CONHCH₃), c-methyl alkan^(n)amide         ((CH₂)_(n)NHCOCH₃), n-alkyl alkan^(n)amide         ((CH₂)_(n)CONH(CH₂)_(m)CH₃), c-methyl alkan^(n)amide         ((CH₂)_(n)NHCO(CH₂)_(m)CH₃), etc.;     -   primary amines: NH₂, methylamine, ethylamine, cyclopropylamine,         etc.;     -   secondary amines: aminomethyl (NHCH₃), aminoethyl (NHCH₂CH₃),         methyl-aminomethyl (CH₂NHCH₃; aka methylamine-methane),         alkyl^(n)-aminomethane ((CH₂)_(n)NHCH₃), etc.;     -   tertiary amines: dimethylamine (N(CH₃)₂), dimethylamine         (N(CH₃)₂), methyl-ethyl-amine (NCH₃CH₂CH₃), methane-diethylamine         (CH₂N(CH₂CH₃)₂; aka methylamine-diethane), etc.;     -   azides: methyl azide (CH₂NNN), ethyl azide ((CH₂)₂NNN),         alkyl^(n) azide ((CH₂)_(n)NNN), etc.;     -   cyanates: methyl cyanate (CH₂OCN), ethyl cyanate ((CH₂)₂OCN),         alkyl^(n) cyanate ((CH₂)_(n)OCN), etc.;     -   Cyanos: cyano (—CN), methyl carbonitrile (CH₂CN), ethyl         carbonitrile ((CH₂)₂CN), alkyl^(n) carbonitrile ((CH₂)_(n)CN),         etc.     -   thiols: methanethiol (CH₂SH), ethanethiol ((CH₂)₂SH),         alkan^(n)ethiol ((CH₂)_(n)SH), etc.     -   sulfides: dimethyl sulfide (CH₂SCH₃), methyl-ethyl sulfide         (CH₂SCH₂CH₃), alkyl^(n)-alkyl^(m) sulfide         ((CH₂)_(n)S(CH₂)_(m-1)CH₃), etc.;     -   sulfoxides: dimethyl sulfoxide (CH₂SOCH₃), methyl-ethyl         sulfoxide (CH₂SOCH₂CH₃), alkyl^(n)-alkyl^(m) sulfoxide         ((CH₂)_(n)SO(CH₂)_(m-1)CH₃), etc.;     -   sulfone: dimethyl sulfone (CH₂SO₂CH₃; aka         methyl-sulfone-methyl), methyl-ethyl sulfone (CH₂SO₂CH₂CH₃; aka         methyl-sulfone-ethyl), alkyl^(n)-alkyl^(m) sulfone ((CH₂)SO₂         (CH₂)_(m-1)CH₃; aka alkyl^(n)-sulfone-alkyl^(m)), R^(x)SO₂R^(y)         (wherein Rx and Ry are independently selected from any of the         moieties provided in this list or combinations thereof), etc.;     -   sulfuonamides: SO₂NH₂, methyl sulfonamide (CH₂SO₂NH₂), ethyl         sulfonamide ((CH₂)₂SO₂NH₂), alkyl^(n) sulfonamide         ((CH₂)_(n)SO₂NH₂), methyl methylsulfonamide (CH₂SO₂NHCH₃),         alkyl^(n) alkyl^(m)sulfonamide ((CH₂)_(n)SO₂NH(CH₂)_(m)CH₃,         etc.;     -   sulfinic acids: SO₂H, methyl sulfinic acid (CH₂SO₂H), ethyl         sulfinic acid ((CH₂)₂SO₂H), alkyl^(n) sulfinic acid ((CH₂)SO₂H),         etc.;     -   thiocyanate: SCN, methyl thiocyanate (CH₂SCN), ethyl thiocyanate         ((CH₂)₂SCN), alkyl^(n) thiocyanate ((CH₂)_(n)SCN), etc.;     -   phosphates: OP(═O)(OH)₂, methyl phosphate (CH₂OP(═O)(OH)₂),         ethyl phosphate ((CH₂)₂OP(═O)(OH)₂), alkyl^(n) phosphate         ((CH₂)_(n)OP(═O)(OH)₂), etc.;         and suitable combinations thereof. For example, in some         embodiments, R², R⁴ (considering restrictions placed on this         substituent by the NSD1 pocket), R⁵, R⁶, R⁷, R⁸ (considering         restrictions placed on this substituent by the NSD1 pocket), and         R^(A1-5) substituents (when present) are independently selected         from: H, alkyl group (e.g., straight-chain alkyl (e.g., methyl,         ethyl, propyl, butyl, pentyl, hexyl, etc.), branched alkyl group         (e.g., iso-propyl, 2-methyl-hexyl, 3-methyl,2-propyl-octyl,         etc.), cycloalkyl (e.g., cyclopropyl, cyclobutyl, cyclopentyl,         cyclohexyl, cycloheptyl, cyclooctyl, etc.), branched cyclic         alkyl (e.g., methylcyclohexyl, ethylcyclobutyl,         propylcyclohexyl, etc.)), a substituted alkyl group (e.g.,         halogen-substituted alkyl group (e.g., trihalobutane (e.g.         trifluorobutane), dihalobutane (e.g. difluorobutane),         monohalobutane (e.g. monofluorobutane), trihalopropane (e.g.         trifluoropropane), dihalopropane (e.g. difluoropropane),         monohalopropane (monofluoropropane), trihaloethane (e.g.,         trifluoroethane), dihaloethane (e.g. difluroethane), haloethane         (e.g. fluoroethane), halomethane (e.g., fluoromethane),         dihalomethane (e.g., difluoromethane), trihalomethane (e.g.,         trifluoromethane), an alkyl group substituted by halogens at         multiple carbons (e.g., 3-fluoro, 4-trifluoroisobutane,         2-difluoro, 3-fluoropropane, etc.), etc.), alkene (e.g., CH═CH₂,         CH₂CH═CH₂, CH═CHCH₃, etc.), alkyne (e.g., C≡CH, C≡CCH₃, CH₂C≡CH,         etc.), alkoxy group (e.g., hydroxyl (e.g., (CH₂)₀₋₆OH, ether         ((CH₂)₀₋₆O(CH₂)₀₋₆)), halogen substituted alkoxy (4-trifluoro,         3-isobutanol, 3-difluoro, 2-propanol, etc.), amine (e.g., NH₂),         alkylamine (e.g., primary amine (e.g., ethylamine,         iso-butylamine, n-propylamine, sec-butylamine, iso-propylamine,         iso-amylamine, methylamine, dimethylamine, n-amylamine, etc.),         secondary amines (e.g., dimethylamine, methylethanolamine,         diphenylamine, etc.), tertiary amine (e.g., trimethylamine,         triphenylamine, etc.), thioalkyl (e.g., thiol (e.g.,         (CH₂)₀₋₆—SH), thioether (e.g., (CH₂)₀₋₆—S—(CH₂)₀₋₆), etc.),         substituted ethers and thioethers, combinations thereof, etc.),         a substituted cycloalkyl group (e.g., halogen-substituted         cycloalkyl group, cycloalkoxy group, cycloalkylamine, etc.), a         halogen substituted alkyl amine (e.g., trifluromethylamine,         trifluoroethylamine, trifluorobutylamine, etc.), a halogen         (e.g., F, Cl, Br, I, and At), a ketone, an amide, an alkylamide,         a cyano group, methyl carbonitrile (e.g. CH₂CN), —SO₂CH₃ group,         —SO₂NH₂ group, sulfonyl group (e.g., methyl sulfonyl, ethyl         sulfonyl, propyl sulfonyl), substituted alkyl sulfonyl (e.g.,         trifluoroethyl sulfonyl), etc.), sulfonamine (e.g.,         (CH₂)₀₋₆SO₂NH₂, (CH₂)₀₋₆NHSO₂, (CH₂)₀₋₆NHSO₂(CH₂)₀₋₆,         (CH₂)₀₋₆SO₂NH(CH₂)₀₋₆, etc.), dialkylphosphine oxide (e.g.,         —PO(CH₃)₂), a carbocyclic ring (substituted or non-substituted),         a heterocyclic ring (substituted or non-substituted), an         aromatic ring, a substituted aromatic ring (e.g., branched         aromatic ring (e.g., ethylbenzene, methyl benzene, etc.),         halobenzene (e.g., chlorobenzene, fluorobenzene, etc.)), a         carbocyclic (substituted or non-substituted), aryl carbocyclic         (substituted or non-substituted), heteroaryl (substituted (e.g.,         sulfonyl substituted, halo-substituted, etc.) or         non-substituted), an alkyl-linked carbocyclic ring (substituted         or non-substituted), an alkyl-linked heterocyclic ring         (substituted or non-substituted), an alkyl-linked aromatic ring         (substituted or non-substituted), an alkyl-linked substituted         aromatic ring, alkyl-linked halobenzene (e.g., chlorobenzene,         fluorobenzene, etc.)), an alkyl-linked carbocyclic (substituted         (e.g., halo substituted, trihalo-alkyl substituted, etc.) or         non-substituted), an alkyl-linked aryl carbocyclic (substituted         or non-substituted), an alkyl-linked heteroaryl (substituted or         non-substituted), an amine-linked carbocyclic ring (substituted         or non-substituted), an amine-linked heterocyclic ring         (substituted or non-substituted), an amine-linked aromatic ring         (substituted or non-substituted), an amine-linked substituted         aromatic ring, amine-linked halobenzene, an amine-linked         carbocyclic (substituted or non-substituted), an amine-linked         aryl carbocyclic (substituted or non-substituted), an         amine-linked heteroaryl (substituted or non-substituted), an         alkylamine-linked carbocyclic ring (substituted or         non-substituted), an alkylamine-linked heterocyclic ring         (substituted or non-substituted), an alkylamine-linked aromatic         ring (substituted or non-substituted), an alkylamine-linked         substituted aromatic ring, alkylamine-linked halobenzene, an         alkylamine-linked carbocyclic (substituted or non-substituted),         an alkylamine-linked aryl carbocyclic (substituted or         non-substituted), an alkylamine-linked heteroaryl (substituted         or non-substituted), an ether-linked carbocyclic ring         (substituted or non-substituted), an ether-linked heterocyclic         ring (substituted or non-substituted), an ether-linked aromatic         ring (substituted or non-substituted), an ether-linked         substituted aromatic ring, ether-linked halobenzene, an         ether-linked carbocyclic (substituted or non-substituted), an         ether-linked aryl carbocyclic (substituted or non-substituted),         an ether-linked heteroaryl (substituted or non-substituted), a         thioether-linked carbocyclic ring (substituted or         non-substituted), a thioether-linked heterocyclic ring         (substituted or non-substituted), a thioether-linked aromatic         ring (substituted or non-substituted), a thioether-linked         substituted aromatic ring, a thioether-linked halobenzene, a         thioether-linked carbocyclic (substituted or non-substituted), a         thioether-linked aryl carbocyclic (substituted or         non-substituted), a thioether-linked heteroaryl (substituted or         non-substituted), a sulfonyl-linked carbocyclic ring         (substituted or non-substituted), a sulfonyl-linked heterocyclic         ring (substituted or non-substituted), a sulfonyl-linked         aromatic ring (substituted or non-substituted), a         sulfonyl-linked substituted aromatic ring, a sulfonyl-linked         halobenzene, a sulfonyl-linked carbocyclic (substituted or         non-substituted), a sulfonyl-linked aryl carbocyclic         (substituted or non-substituted), a sulfonyl-linked heteroaryl         (substituted or non-substituted), a sulfonamide-linked         carbocyclic ring (substituted or non-substituted), a         sulfonamide-linked heterocyclic ring (substituted or         non-substituted), a sulfonamide-linked aromatic ring         (substituted or non-substituted), a sulfonamide-linked         substituted aromatic ring, a sulfonamide-linked halobenzene, a         sulfonamide-linked carbocyclic (substituted or non-substituted),         a sulfonamide-linked aryl carbocyclic (substituted or         non-substituted), a sulfonamide-linked heteroaryl (substituted         or non-substituted), an amide-linked carbocyclic ring         (substituted or non-substituted), an amide-linked heterocyclic         ring (substituted or non-substituted), an amide-linked aromatic         ring (substituted or non-substituted), an amide-linked         substituted aromatic ring, amide-linked halobenzene, an         amide-linked carbocyclic (substituted or non-substituted), an         amide-linked aryl carbocyclic (substituted or non-substituted),         an amide-linked heteroaryl (substituted (e.g., alkyl pyrrole,         pyrrole amine, pyrrole ether, etc.) or non-substituted (e.g.,         imidazole, indole), an alkylamide-linked carbocyclic ring         (substituted or non-substituted), an alkylamide-linked         heterocyclic ring (substituted or non-substituted), an         alkylamide-linked aromatic ring (substituted or         non-substituted), an alkylamide-linked substituted aromatic         ring, alkylamide-linked halobenzene, an alkylamide-linked         carbocyclic (substituted or non-substituted), an         alkylamide-linked aryl carbocyclic (substituted or         non-substituted), an alkylamide-linked heteroaryl (substituted         or non-substituted), a carbamide-linked carbocyclic ring         (substituted or non-substituted), a carbamide-linked         heterocyclic ring (substituted or non-substituted), a         carbamide-linked aromatic ring (substituted or non-substituted),         a carbamide-linked substituted aromatic ring, a carbamide-linked         halobenzene, a carbamide-linked carbocyclic (substituted or         non-substituted), a carbamide-linked aryl carbocyclic         (substituted or non-substituted), a carbamide-linked heteroaryl         (substituted or non-substituted), a bridged carbocyclic ring         (substituted or non-substituted), a bridged heterocyclic ring         (substituted or non-substituted), a bridged aromatic ring         (substituted or non-substituted), a bridged substituted aromatic         ring, a bridged halobenzene, a bridged carbocyclic (substituted         or non-substituted), a bridged aryl carbocyclic (substituted or         non-substituted), a bridged heteroaryl (substituted or         non-substituted), and/or combinations thereof.

In some embodiments, any of the R² and/or R⁵ substituents, when present in a compound of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) are of one of Formulas (a)-(q):

wherein one of J, Q¹, or J¹, when present, is linked to one of the D, G, A, E, or M rings;

wherein each J, J¹, J², J³, and J⁴, when present, are independently selected from the group consisting of: a covalent bond, H, alkyl₁₋₁₅, alkenyl₁₋₆, alkynyl₁₋₆, (CH₂)₀₋₆C(S)NH₂, (CH₂)₀₋₆C(O)NH₂, O, S, NH, (CH₂)₀₋₆C(O)NH(CH₂)₁₋₆, (CH₂)₀₋₆C(S)NH(CH₂)₁₋₆, (CH₂)₀₋₆O(CH₂)₁₋₆, (CH₂)₀₋₆OH, (CH₂)₀₋₆S(CH₂)₁₋₆, (CH₂)₀₋₆SH, (CH₂)₀₋₆NHC(O)(CH₂)₁₋₆, alkylsulfonyl, sulfonamide, alkylsulfonamide, (CH₂)₀₋₆NH(CH₂)₁₋₆, (CH₂)₀₋₆N(CH₂)₁₋₆(CH₂)₁₋₆ (See, e.g., Compound 80), (CH₂)₀₋₆NH₂, (CH₂)₀₋₆SO₂ (CH₂)₁₋₆, (CH₂)₀₋₆NHSO₂(CH₂)₁₋₆, (CH₂)₀₋₆SO₂ NH₂, halogen (e.g., F, Cl, Br, or I), haloalkyl (e.g., (CH₂)₀₋₆ CH₂F, (CH₂)₀₋₃CHF(CH₂)₀₋₂CH₃, or similar with Br, Cl, or I), dihaloalkyl (e.g., (CH₂)₀₋₆ CF₂H, (CH₂)₀₋₃ CF₂(CH₂)₀₋₂CH₃, or similar with Br, Cl, or I), trihaloalkyl (e.g., (CH₂)₀₋₆ CF₃, or similar with Br, Cl, or I), alkyl with 1-3 halogens at two or more positions along its length, (CH₂)₁₋₄SP(Ph)₂═S, (CH₂)₀₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋ ₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆O(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆S(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋₆NH(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆NH(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₆NH(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋₆O(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆O(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₆O(CH₂)₁₋₅SH, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅OH, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅NH₂, (CH₂)₀₋₆NH(CH₂)₁₋₆S(CH₂)₁₋₅SH, (CH₂)₀₋₃C(O)O(CH₂)₀₋₃, (CH₂)₀₋₃C(S)O(CH₂)₀₋₃, (CH₂)₀₋₃C(O)S(CH₂)₀₋₃, (CH₂)₀₋₃C(S)S(CH₂)₀₋₃, (CH₂)₀₋₃C(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃C(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)NH(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)NH(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)O(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)O(CH₂)₀₋₃, (CH₂)₀₋₃NHC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃NHC(S)S(CH₂)₀₋₃, (CH₂)₀₋₃OC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃OC(S)S(CH₂)₀₋₃, (CH₂)₀₋₃SC(O)S(CH₂)₀₋₃, (CH₂)₀₋₃SC(S)S(CH₂)₀₋₃, (CH₂O)₁₋₆, and trimethyl methane;

wherein each Q, Q¹, and Q², when present, is independently selected from the group consisting of: furan, benzofuran, isobenzofuran, pyrrole, indole, isoindole, thiophene, benzothiophene, benzo[c]thiophene, imidazole, benzimidazole, purine, pyrazole, indazole, oxazole, benzooxazole, isoxazole, benzisoxazole, thiazole, benzothiazole, benzene, napthalene, pyridine, quinolone, isoquinoline, pyrazine, quinoxaline, pyrimidine, quinazoline, pyridazine, cinnoline, phthalazine, thalidomide, triazine (e.g., 1,2,3-triazine; 1,2,4-triazine; 1,3,5 triazine), thiadiazole, aziridine, thiirane (episulfides), oxirane (ethylene oxide, epoxides), oxaziridine, dioxirane, azetidine, oxetan, thietane, diazetidine, dioxetane, dithietane, pyrrolidine, tetrahydrofuran, thiolane, imidazolidine, pyrazolidine, oxazolidine, isoxazolidine, thiazolidine, isothiazolidine, dioxolane, dithiolane, piperidine, oxane, thiane, pepierazine, morpholine, thiomorpholine, dioxane, dithiane, trioxane, thithiane, azepane, oxepane, thiepane, homopiperazine, azocane, tetrahydropyran, cyclobutene, cyclopentene, cyclohexene, cycloheptene, 1,3-cyclohexadiene, 1,4-cyclohexadiene, 1,5-cyclooctadiene, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, any suitable C³-C⁷ cycloalkyl group, and any of the ring structures depicted in Table 1;

wherein each Q, Q¹, and Q², when present, may display one or more additional J groups at any position on the Q ring;

wherein any alkyl or (CH₂)_(x-y) groups above may be straight or branched;

wherein any alkyl or (CH₂)_(x-y) groups above may additionally comprise OH, ═O, NH₂, CN, dihaloalkyl (e.g., CF₂H), trihaloalkyl (e.g., CF₃), or halogen (e.g., F) substituents at one or more carbons;

wherein the number of hydrogens on terminal positions of the groups above may be adjusted if the group is linked to an additional group (e.g., CH₃ adjusted to CH₂, OH adjusted to O, etc.) or if the group is terminal (e.g., CH₂ adjusted to CH₃, O adjusted to OH, etc.); and

wherein any of formulas (a)-(q) may additionally comprise a terminal fluorophore (e.g. fluoresceine), solid surface, enzyme ligand (e.g. thalidomide or VHL ligand (e.g., (2S,4R)-1-((S)-2-amino-3,3-dimethylbutanoyl)-4-hydroxy-N-(4-(4-methylthiazol-5-yl)benzyl)pyrrolidine-2-carboxamide, etc.), or affinity tag (e.g. biotin).

A compound of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), may be selected from compounds listed in Table 2. Compounds of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) that are not listed in Table 2 are also within the scope herein. In some embodiments, compounds of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) may comprise any of the substituents depicted in the compounds of Table 2, in any suitable combinations.

TABLE 2 Exemplary compounds M_(w) calc. [MH]⁺ found Number Structure (Da) (Da) 1

222.08 2

208.07 3

180.04 181.0445 4

199.98 200.9892 5

227.94 6

226.06 7

194.05 8

180.04 9

227.94 228.9427 10

175.02 176.0271 11

180.04 12

118.01 13

121.06 14

226.06 227.0632 15

178.06 179.0633 16

166.02 167.0270 17

179.05 18

210.05 19

230.00 20

179.05 180.0591 21

257.95 22

243.93 23

190.06 191.0858 24

214.00 25

199.98 26

214.00 27

179.05 28

194.05 29

198.00 30

295.92 31

221.06 32

193.07 33

228.01 229.0225 34

214.00 215.0060 35

257.95 258.9545 36

222.99 223.9953 37

212.01 38

183.99 39

226.02 227.0338 40

240.04 241.0509 41

240.04 241.0503 42

210.05 211.0555 43

212.01 213.0184 44

303.93 304.9422 45

269.03 46

264.06 47

231.05 48

238.00 49

249.06 50

277.09 51

235.04 52

237.00 53

237.06 54

217.03 55

285.94 56

257.95 57

262.88 58

228.92 59

304.03 305.0417 60

294.01 295.0185 61

393.97 394.9756 62

480.05 [M + 2H]²⁺ 241.0337 63

557.97 558.9823 64

319.01 320.0144 65

165.02 166.0318 66

222.05 223.0536 67

244.93 245.9404 68

244.93 245.9406 69

207.98 208.9837 70

254.92 255.9253 71

190.02 191.0274 72

256.93 257.9416 73

270.97 271.9749 74

204.04 205.0437 75

220.03 221.0386 76

234.05 235.0532 77

280.07 281.0744 78

233.03 234.0332 79

206.05 207.0586 80

222.03 223.0336 81

294.08 295.0904 82

236.04 237.0494 83

249.06 250.0642 84

311.07 312.0802 85

233.06 234.0698 86

295.08 296.0853 87

266.05 267.0588 88

232.07 233.0742 89

313.07 314.0761 90

310.09 311.0965 91

364.10 365.1066 92

310.09 311.0962 93

302.03 303.0377 94

310.09 311.0962 95

363.07 364.0729 96

313.07 314.0761 97

329.04 330.0465 98

296.07 297.0804 99

329.04 330.0463 100

329.04 330.0467 101

313.07 314.0761 102

363.07 364.0733 103

363.07 364.0735 104

325.09 326.0963 105

309.09 310.1012 106

379.06 380.0678 107

299.08 300.0913 108

328.08 109

434.18 435.1854 110

428.13 429.1381 111

340.10 341.1066 112

434.18 435.1854 113

420.20 412.2062 114

420.20 115

414.15 116

414.15 415.1592 117

367.14 368.1436 118

367.14 368.1432 119

415.14 416.1432 120

280.07 281.45 121

256.03 257.36 122

242.02 243.35 123

256.03 257.45 124

254.05 255.40 125

254.05 255.40 126

280.00 281.30 127

341.09 342.45 128

241.03 242.40 129

237.00 238.40 130

387.03 389.30 131

286.97 289.90 132

327.00 329.90 133

288.04 134

184.01 135

222.00 136

205.07 137

191.05 138

203.05 139

206.05 140

234.08 141

220.07 142

195.01 143

307.96 144

193.07 145

220.07 146

235.04 147

194.01 148

207.05 208.0539 149

212.01 213.0146 150

206.05 207.0580 151

221.06 222.0695 152

235.08 236.0855 153

235.08 236.0852 154

297.09 298.1012 155

235.08 236.0853 156

315.08 316.0915 157

315.08 316.0914 158

342.08 343.0860 159

331.05 332.0620 160

331.05 332.0619 161

288.10 289.1117 162

313.09 314.0958 163

334.09 335.0965 164

390.15 391.1588 165

390.15 391.1589 166

257.95 258.9534 167

261.90 262.9039 168

285.07 286.0756 169

345.07 346.0777 170

300.05 301.0565 171

176.04 177.0482 172

165.04 166.0432 173

510.11 511.1219 174

536.16 537.1704 175

443.14 444.1487 176

443.14 444.1484 177

432.14 433.1444 178

430.15 431.1543 179

416.13 417.1379 180

512.16 513.1625 181

449.10 450.1063 182

492.22 493.2390 183

498.14 499.1474 184

553.18 540.1748 185

501.15 502.1583 186

513.15 514.1579 187

527.17 528.1736 188

448.10 449.1103 189

432.13 433.1331 190

457.16 458.1651 191

485.12 486.1268 192

499.13 500.1422 193

435.08 436.0898 194

432.14 433.1447 195

433.13 434.1396 196

457.09 458.0957 197

511.17 512.1752 198

471.10 472.1106 199

414.08 415.0894 200

438.08 439.0897 201

364.10 365.1068 202

366.12 367.1225 203

365.41 366.0909 204

365.41 366.0907 205

438.08 439.0898 206

429.13 207

447.08 210

388.10 211

349.09 350.0960 212

363.10 213

429.08 214

443.10 215

457.11 216

471.13 217

453.09 218

379.10 219

433.07 220

441.11 221

376.1 377.1068 222

416.10 417.1056 223

454.15 455.1543 224

454.15 455.1543 225

432.07 433.0800 226

432.07 433.0803 227

440.10 441.1053 228

428.10 429.1054 229

428.10 429.1053 230

448.05 449.0509 231

414.08 415.0897 232

440.10 441.1055 233

414.08 415.0896 234

446.10 447.1102 235

455.14 456.1493 236

466.11 467.1215 237

378.12 379.1228 238

457.12 458.1286 239

432.07 433.0806 240

428.10 429.1055 241

448.04 449.0505 242

457.12 458.1284 243

525.11 526.1158 244

781.22 782.2280 246

410.06 411.0683 247

490.11 491.1215 248

428.10 429.1056 249

442.11 443.1213 251

448.19 449.2014 252

420.16 421.1701 253

434.18 435.1858 254

408.16 409.1701 255

553.18 554.1892 256

468.14 469.1465 257

468.14 469.1463 258

410.06 411.0684 259

509.12 510.1274 261

424.08 425.0835 262

378.10 379.1021 263

360.10 361.1122 264

404.13 405.1381 265

390.12 391.1227 266

390.12 391.1226 267

394.07 395.0735 268

487.11 488.1213 269

374.12 375.1279 271

390.12 391.1227 272

394.09 395.0979 273

261.92 262.9286 274

421.07 275

400.10 276

361.09 277

380.13 278

392.11 279

410.10 281

455.13 456.1375 282

295.08 296.0852 283

310.08 311.0849 284

406.06 407.0675 285

415.07 416.0736 286

309.02 310.0316 287

415.07 416.0735 288

399.07 400.0789 289

335.07 336.0803 290

335.07 336.0803 291

449.03 450.0345 292

361.42 293

418.53 294

354.43 295

366.44 296

398.50 297

378.45 298

377.46 299

379.48 300

381.45 301

379.43 302

367.42 303

365.45 304

383.48 305

397.51 306

388.45 307

403.46 308

420.51 309

404.44 310

401.44 311

414.48 In some embodiments, the substituents and functional groups of the compounds of Table 2 may be recombined within the Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) to yield compounds within the scope herein.

Exemplary compounds herein have been tested for binding to an NSD family protein. For example, compounds 25, 27, 39-43, 56, 60, 62, 63, 64, 66, 74-82, 85, 93, 95, 105-107, 113, 116-119, 122-124, 126, 128, 131-133, 147, 150, 155, 164, 165, 168, 169, 201, 202, 263, 264, 267, 268, 269, 271, 273, 282-284, 286, 289, 290 exhibit an IC50 for an NSD family protein of between 20 μM and 200 μM. In some embodiments, compounds 22, 36, 61, 71, 86, 89, 90-92, 94, 96-104, 108, 111, 112, 148, 149, 151-154, 156, 160, 163, 173-199, 200, 203, 204, 205, 211, 221-262, 265-266, 272, 281, 285, 287, 288, 291 exhibit an IC50 for an NSD family protein of less than 20 μM.

The compounds described herein may in some cases exist as diastereomers, enantiomers, or other stereoisomeric forms. The compounds presented herein include all diastereomeric, enantiomeric, and epimeric forms as well as the appropriate mixtures thereof. Separation of stereoisomers may be performed by chromatography or by the forming diastereomeric and separation by recrystallization, or chromatography, or any combination thereof. (Jean Jacques, Andre Collet, Samuel H. Wilen, “Enantiomers, Racemates and Resolutions”, John Wiley And Sons, Inc., 1981, herein incorporated by reference for this disclosure). Stereoisomers may also be obtained by stereoselective synthesis.

In some embodiments, compounds may exist as tautomers. All tautomers are included within the formulas described herein.

Unless specified otherwise, divalent variables or groups described herein may be attached in the orientation in which they are depicted or they may be attached in the reverse orientation.

The methods and compositions described herein include the use of amorphous forms as well as crystalline forms (also known as polymorphs). The compounds described herein may be in the form of pharmaceutically acceptable salts. As well, active metabolites of these compounds having the same type of activity are included in the scope of the present disclosure. In addition, the compounds described herein can exist in unsolvated as well as solvated forms with pharmaceutically acceptable solvents such as water, ethanol, etc. The solvated forms of the compounds presented herein are also considered to be disclosed herein.

In some embodiments, compounds or salts described herein may be prodrugs. A “prodrug” refers to an agent that is converted into the parent drug in vivo. Prodrugs are often useful because, in some situations, they may be easier to administer than the parent drug. They may, for instance, be bioavailable by oral administration whereas the parent is not. The prodrug may also have improved solubility in pharmaceutical compositions over the parent drug. An example, without limitation, of a prodrug would be a compound described herein, which is administered as an ester (the “prodrug”) to facilitate transmittal across a cell membrane where water solubility is detrimental to mobility but which then is metabolically hydrolyzed to the carboxylic acid, the active entity, once inside the cell where water-solubility is beneficial. A further example of a prodrug might be a short peptide (polyaminoacid) bonded to an acid group where the peptide is metabolized to reveal the active moiety. In certain embodiments, upon in vivo administration, a prodrug is chemically converted to the biologically, pharmaceutically or therapeutically active form of the compound. In certain embodiments, a prodrug is enzymatically metabolized by one or more steps or processes to the biologically, pharmaceutically or therapeutically active form of the compound.

To produce a prodrug, a pharmaceutically active compound is modified such that the active compound will be regenerated upon in vivo administration. The prodrug can be designed to alter the metabolic stability or the transport characteristics of a drug, to mask side effects or toxicity, to improve the flavor of a drug or to alter other characteristics or properties of a drug. In some embodiments, by virtue of knowledge of pharmacodynamic processes and drug metabolism in vivo, once a pharmaceutically active compound is determined, prodrugs of the compound are designed. (see, for example, Nogrady (1985) Medicinal Chemistry A Biochemical Approach, Oxford University Press, New York, pages 388-392; Silverman (1992), The Organic Chemistry of Drug Design and Drug Action, Academic Press, Inc., San Diego, pages 352-401, Saulnier et al., (1994), Bioorganic and Medicinal Chemistry Letters, Vol. 4, p. 1985; Rooseboom et al., Pharmacological Reviews, 56:53-102, 2004; Miller et al., J. Med. Chem. Vol. 46, no. 24, 5097-5116, 2003; Aesop Cho, “Recent Advances in Oral Prodrug Discovery”, Annual Reports in Medicinal Chemistry, Vol. 41, 395-407, 2006).

The compounds described herein may be labeled isotopically (e.g. with a radioisotope) or by other means, including, but not limited to, the use of chromophores or fluorescent moieties, bioluminescent labels, photoactivatable or chemiluminescent labels, affinity labels (e.g. biotin), degradation tags (e.g. thalidomide conjugates (e.g., compounds 198, 199, etc.), VHL ligand conjugates (e.g., compound 302), etc.).

Compounds and salts described herein include isotopically-labeled compounds. In general, isotopically-labeled compounds are identical to those recited in the various formulae and structures presented herein, but for the fact that one or more atoms are replaced by an atom having an atomic mass or mass number different from the atomic mass or mass number most common in nature. Examples of isotopes that can be incorporated into the present compounds include isotopes of hydrogen, carbon, nitrogen, oxygen, fluorine and chlorine, for example, ²H, ³H, ¹³C, ¹⁴C, ¹⁵N, ¹⁸O, ¹⁷O, ³⁵S, ¹⁸F, ³⁶Cl, respectively. Certain isotopically-labeled compounds described herein, for example those into which radioactive isotopes such as ³H and ¹⁴C are incorporated, are useful in drug and/or substrate tissue distribution assays. Further, substitution with isotopes such as deuterium, i.e., ²H, can afford certain therapeutic advantages resulting from greater metabolic stability, such as, for example, increased in vivo half-life or reduced dosage requirements.

In additional or further embodiments, the compounds described herein are metabolized upon administration to an organism in need to produce a metabolite that is then used to produce a desired effect, including a desired therapeutic effect.

Compounds described herein may be formed as, and/or used as, pharmaceutically acceptable salts. The type of pharmaceutical acceptable salts, include, but are not limited to: (1) acid addition salts, formed by reacting the free base form of the compound with a pharmaceutically acceptable: inorganic acid, such as, for example, hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, metaphosphoric acid, and the like; or with an organic acid, such as, for example, acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, trifluoroacetic acid, tartaric acid, citric acid, benzoic acid, 3-(4-hydroxybenzoyl)benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1,2-ethanedisulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, toluenesulfonic acid, 2-naphthalenesulfonic acid, 4-methylbicyclo-[2.2.2]oct-2-ene-1-carboxylic acid, glucoheptonic acid, 4,4′-methylenebis-(3-hydroxy-2-ene-1-carboxylic acid), 3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic acid, lauryl sulfuric acid, gluconic acid, glutamic acid, hydroxynaphthoic acid, salicylic acid, stearic acid, muconic acid, butyric acid, phenylacetic acid, phenylbutyric acid, valproic acid, and the like; (2) salts formed when an acidic proton present in the parent compound is replaced by a metal ion, e.g., an alkali metal ion (e.g. lithium, sodium, potassium), an alkaline earth ion (e.g. magnesium, or calcium), or an aluminum ion. In some cases, compounds described herein may coordinate with an organic base, such as, but not limited to, ethanolamine, diethanolamine, triethanolamine, tromethamine, N-methylglucamine, dicyclohexylamine, tris(hydroxymethyl)methylamine. In other cases, compounds described herein may form salts with amino acids such as, but not limited to, arginine, lysine, and the like. Acceptable inorganic bases used to form salts with compounds that include an acidic proton, include, but are not limited to, aluminum hydroxide, calcium hydroxide, potassium hydroxide, sodium carbonate, sodium hydroxide, and the like.

It should be understood that a reference to a pharmaceutically acceptable salt includes the solvent addition forms or crystal forms thereof, particularly solvates or polymorphs. Solvates contain either stoichiometric or non-stoichiometric amounts of a solvent, and may be formed during the process of crystallization with pharmaceutically acceptable solvents such as water, ethanol, and the like. Hydrates are formed when the solvent is water, or alcoholates are formed when the solvent is alcohol. Solvates of compounds described herein can be conveniently prepared or formed during the processes described herein. In addition, the compounds provided herein can exist in unsolvated as well as solvated forms. In general, the solvated forms are considered equivalent to the unsolvated forms for the purposes of the compounds and methods provided herein.

In some embodiments, compounds described herein, such as compounds of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV) with any suitable substituents and functional groups disclosed herein, are in various forms, including but not limited to, amorphous forms, milled forms and nano-particulate forms. In addition, compounds described herein include crystalline forms, also known as polymorphs. Polymorphs include the different crystal packing arrangements of the same elemental composition of a compound. Polymorphs usually have different X-ray diffraction patterns, melting points, density, hardness, crystal shape, optical properties, stability, and solubility. Various factors such as the recrystallization solvent, rate of crystallization, and storage temperature may cause a single crystal form to dominate.

The screening and characterization of the pharmaceutically acceptable salts, polymorphs and/or solvates may be accomplished using a variety of techniques including, but not limited to, thermal analysis, x-ray diffraction, spectroscopy, vapor sorption, and microscopy. Thermal analysis methods address thermo chemical degradation or thermo physical processes including, but not limited to, polymorphic transitions, and such methods are used to analyze the relationships between polymorphic forms, determine weight loss, to find the glass transition temperature, or for excipient compatibility studies. Such methods include, but are not limited to, Differential scanning calorimetry (DSC), Modulated Differential Scanning Calorimetry (MDCS), Thermogravimetric analysis (TGA), and Thermogravi-metric and Infrared analysis (TG/IR). X-ray diffraction methods include, but are not limited to, single crystal and powder diffractometers and synchrotron sources. The various spectroscopic techniques used include, but are not limited to, Raman, FTIR, UV-VIS, and NMR (liquid and solid state). The various microscopy techniques include, but are not limited to, polarized light microscopy, Scanning Electron Microscopy (SEM) with Energy Dispersive X-Ray Analysis (EDX), Environmental Scanning Electron Microscopy with EDX (in gas or water vapor atmosphere), IR microscopy, and Raman microscopy.

Throughout the specification, groups and substituents thereof can be chosen to provide stable moieties and compounds.

Pharmaceutical Compositions

In certain embodiments, compounds or salts of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, are combined with one or more additional agents to form pharmaceutical compositions. Pharmaceutical compositions may be formulated in a conventional manner using one or more physiologically acceptable carriers including excipients and auxiliaries which facilitate processing of the active compounds into preparations which can be used pharmaceutically. Proper formulation is dependent upon the route of administration chosen. Additional details about suitable excipients for pharmaceutical compositions described herein may be found, for example, in Remington: The Science and Practice of Pharmacy, Nineteenth Ed (Easton, Pa.: Mack Publishing Company, 1995); Hoover, John E., Remington's Pharmaceutical Sciences, Mack Publishing Co., Easton, Pa. 1975; Liberman, H. A. and Lachman, L., Eds., Pharmaceutical Dosage Forms, Marcel Decker, New York, N.Y., 1980; and Pharmaceutical Dosage Forms and Drug Delivery Systems, Seventh Ed. (Lippincott Williams & Wilkins 1999), herein incorporated by reference for such disclosure.

A pharmaceutical composition, as used herein, refers to a mixture of a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, with other chemical components, such as carriers, stabilizers, diluents, dispersing agents, suspending agents, thickening agents, and/or excipients. The pharmaceutical composition facilitates administration of the compound to an organism. In practicing the methods of treatment or use provided herein, therapeutically effective amounts of compounds described herein are administered in a pharmaceutical composition to a mammal having a disease, disorder, or condition to be treated. In some embodiments, the mammal is a human. A therapeutically effective amount can vary widely depending on the severity of the disease, the age and relative health of the subject, the potency of the compound used and other factors. The compounds or salts of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, can be used singly or in combination with one or more therapeutic agents as components of mixtures (as in combination therapy).

The pharmaceutical formulations described herein can be administered to a subject by multiple administration routes, including but not limited to, oral, parenteral (e.g., intravenous, subcutaneous, intramuscular), intranasal, buccal, topical, rectal, or transdermal administration routes. Moreover, the pharmaceutical compositions described herein, which include a compound of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, can be formulated into any suitable dosage form, including but not limited to, aqueous oral dispersions, liquids, gels, syrups, elixirs, slurries, suspensions, aerosols, fast melt formulations, effervescent formulations, lyophilized formulations, tablets, powders, pills, dragees, and capsules.

One may administer the compounds and/or compositions in a local rather than systemic manner, for example, via injection of the compound directly into an organ or tissue, often in a depot preparation or sustained release formulation. Such long acting formulations may be administered by implantation (for example subcutaneously or intramuscularly) or by intramuscular injection. Furthermore, one may administer the drug in a targeted drug delivery system, for example, in a liposome coated with organ-specific antibody. The liposomes will be targeted to and taken up selectively by the organ. In addition, the drug may be provided in the form of a rapid release formulation, in the form of an extended release formulation, or in the form of an intermediate release formulation.

Pharmaceutical compositions including a compound described herein may be manufactured in a conventional manner, such as, by way of example only, by means of conventional mixing, dissolving, granulating, dragee-making, levigating, emulsifying, encapsulating, entrapping or compression processes.

The pharmaceutical compositions will include at least one compound of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, as an active ingredient in free-acid or free-base form, or in a pharmaceutically acceptable salt form.

In certain embodiments, compositions provided herein may also include one or more preservatives to inhibit microbial activity. Suitable preservatives include quaternary ammonium compounds such as benzalkonium chloride, cetyltrimethylammonium bromide and cetylpyridinium chloride.

Pharmaceutical preparations for oral use can be obtained by mixing one or more solid excipients with one or more of the compounds or salts of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, optionally grinding the resulting mixture, and processing the mixture of granules, after adding suitable auxiliaries, if desired, to obtain tablets, pills, or capsules. Suitable excipients include, for example, fillers such as sugars, including lactose, sucrose, mannitol, or sorbitol; cellulose preparations such as, for example, maize starch, wheat starch, rice starch, potato starch, gelatin, gum tragacanth, methylcellulose, microcrystalline cellulose, hydroxypropylmethylcellulose, sodium carboxymethylcellulose; or others such as: polyvinylpyrrolidone (PVP or povidone) or calcium phosphate. If desired, disintegrating agents may be added, such as the cross-linked croscarmellose sodium, polyvinylpyrrolidone, agar, or alginic acid or a salt thereof such as sodium alginate.

Dragee cores are provided with suitable coatings. For this purpose, concentrated sugar solutions may be used, which may optionally contain gum arabic, talc, polyvinylpyrrolidone, carbopol gel, polyethylene glycol, and/or titanium dioxide, lacquer solutions, and suitable organic solvents or solvent mixtures. Dyestuffs or pigments may be added to the tablets or dragee coatings for identification or to characterize different combinations of active compound doses.

Pharmaceutical preparations that can be used orally include push-fit capsules made of gelatin, as well as soft, sealed capsules made of gelatin and a plasticizer, such as glycerol or sorbitol. The push-fit capsules can contain the active ingredients in admixture with filler such as lactose, binders such as starches, and/or lubricants such as talc or magnesium stearate and, optionally, stabilizers. In soft capsules, the active compounds may be dissolved or suspended in suitable liquids, such as fatty oils, liquid paraffin, or liquid polyethylene glycols. In addition, stabilizers may be added.

In some embodiments, the solid dosage forms disclosed herein may be in the form of a tablet, (including a suspension tablet, a fast-melt tablet, a bite-disintegration tablet, a rapid-disintegration tablet, an effervescent tablet, or a caplet), a pill, a powder (including a sterile packaged powder, a dispensable powder, or an effervescent powder), a capsule (including both soft or hard capsules, e.g., capsules made from animal-derived gelatin or plant-derived HPMC, or “sprinkle capsules”), solid dispersion, solid solution, bioerodible dosage form, multiparticulate dosage forms, pellets, granules, or an aerosol. In other embodiments, the pharmaceutical formulation is in the form of a powder. In still other embodiments, the pharmaceutical formulation is in the form of a tablet, including but not limited to, a fast-melt tablet. Additionally, pharmaceutical formulations of the compounds described herein may be administered as a single capsule or in multiple capsule dosage form. In some embodiments, the pharmaceutical formulation is administered in two, or three, or four, capsules or tablets.

In some embodiments, solid dosage forms, e.g., tablets, effervescent tablets, and capsules, are prepared by mixing particles of a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, with one or more pharmaceutical excipients to form a bulk blend composition. When referring to these bulk blend compositions as homogeneous, it is meant that the particles of the compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, are dispersed evenly throughout the composition so that the composition may be subdivided into equally effective unit dosage forms, such as tablets, pills, and capsules. The individual unit dosages may also include film coatings, which disintegrate upon oral ingestion or upon contact with diluent. These formulations can be manufactured by conventional pharmacological techniques.

The pharmaceutical solid dosage forms described herein can include a compound of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, and one or more pharmaceutically acceptable additives such as a compatible carrier, binder, filling agent, suspending agent, flavoring agent, sweetening agent, disintegrating agent, dispersing agent, surfactant, lubricant, colorant, diluent, solubilizer, moistening agent, plasticizer, stabilizer, penetration enhancer, wetting agent, anti-foaming agent, antioxidant, preservative, or one or more combination thereof. In still other aspects, using standard coating procedures, such as those described in Remington's Pharmaceutical Sciences, 20th Edition (2000), a film coating is provided around the formulation of the compound described herein. In one embodiment, some or all of the particles of the compound described herein are coated. In another embodiment, some or all of the particles of the compound described herein are microencapsulated. In still another embodiment, the particles of the compound described herein are not microencapsulated and are uncoated.

Suitable carriers for use in the solid dosage forms described herein include, but are not limited to, acacia, gelatin, colloidal silicon dioxide, calcium glycerophosphate, calcium lactate, maltodextrin, glycerine, magnesium silicate, sodium caseinate, soy lecithin, sodium chloride, tricalcium phosphate, dipotassium phosphate, sodium stearoyl lactylate, carrageenan, monoglyceride, diglyceride, pregelatinized starch, hydroxypropylmethylcellulose, hydroxypropylmethylcellulose acetate stearate, sucrose, microcrystalline cellulose, lactose, mannitol and the like.

Suitable filling agents for use in the solid dosage forms described herein include, but are not limited to, lactose, calcium carbonate, calcium phosphate, dibasic calcium phosphate, calcium sulfate, microcrystalline cellulose, cellulose powder, dextrose, dextrates, dextran, starches, pregelatinized starch, hydroxypropylmethycellulose (HPMC), hydroxypropylmethycellulose phthalate, hydroxypropylmethylcellulose acetate stearate (HPMCAS), sucrose, xylitol, lactitol, mannitol, sorbitol, sodium chloride, polyethylene glycol, and the like.

In order to release the compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, from a solid dosage form matrix as efficiently as possible, disintegrants are often used in the formulation, especially when the dosage forms are compressed with binder. Disintegrants help rupturing the dosage form matrix by swelling or capillary action when moisture is absorbed into the dosage form. Suitable disintegrants for use in the solid dosage forms described herein include, but are not limited to, natural starch such as corn starch or potato starch, a pregelatinized starch such as National 1551 or Amijel®, or sodium starch glycolate such as Promogel® or Explotab®, a cellulose such as a wood product, methylcrystalline cellulose, e.g., Avicel®, Avicel® PH101, Avicel® PH102, Avicel® PH105, Elcema® P100, Emcocel®, Vivacel®, Ming Tia®, and Solka-Floc®, methylcellulose, croscarmellose, or a cross-linked cellulose, such as cross-linked sodium carboxymethylcellulose (Ac-Di-Sol®), cross-linked carboxymethylcellulose, or cross-linked croscarmellose, a cross-linked starch such as sodium starch glycolate, a cross-linked polymer such as crospovidone, a cross-linked polyvinylpyrrolidone, alginate such as alginic acid or a salt of alginic acid such as sodium alginate, a clay such as Veegum® HV (magnesium aluminum silicate), a gum such as agar, guar, locust bean, Karaya, pectin, or tragacanth, sodium starch glycolate, bentonite, a natural sponge, a surfactant, a resin such as a cation-exchange resin, citrus pulp, sodium lauryl sulfate, sodium lauryl sulfate in combination starch, and the like.

Binders impart cohesiveness to solid oral dosage form formulations: for powder filled capsule formulation, they aid in plug formation that can be filled into soft or hard shell capsules and for tablet formulation, they ensure the tablet remaining intact after compression and help assure blend uniformity prior to a compression or fill step. Materials suitable for use as binders in the solid dosage forms described herein include, but are not limited to, carboxymethylcellulose, methylcellulose (e.g., Methocel®), hydroxypropylmethylcellulose (e.g. Hypromellose USP Pharmacoat-603, hydroxypropylmethylcellulose acetate stearate (Aqoate HS-LF and HS), hydroxyethylcellulose, hydroxypropylcellulose (e.g., Klucel®), ethylcellulose (e.g., Ethocel®), and microcrystalline cellulose (e.g., Avicel®), microcrystalline dextrose, amylose, magnesium aluminum silicate, polysaccharide acids, bentonites, gelatin, polyvinylpyrrolidone/vinyl acetate copolymer, crospovidone, povidone, starch, pregelatinized starch, tragacanth, dextrin, a sugar, such as sucrose (e.g., Dipac®), glucose, dextrose, molasses, mannitol, sorbitol, xylitol (e.g., Xylitab®), lactose, a natural or synthetic gum such as acacia, tragacanth, ghatti gum, mucilage of isapol husks, starch, polyvinylpyrrolidone (e.g., Povidone® CL, Kollidon® CL, Polyplasdone® XL-10, and Povidone® K-12), larch arabogalactan, Veegum®, polyethylene glycol, waxes, sodium alginate, and the like.

In general, binder levels of 20-70% are used in powder-filled gelatin capsule formulations. Binder usage level in tablet formulations varies whether direct compression, wet granulation, roller compaction, or usage of other excipients such as fillers which itself can act as moderate binder. In some embodiments, formulators determine the binder level for the formulations, but binder usage level of up to 70% in tablet formulations is common.

Suitable lubricants or glidants for use in the solid dosage forms described herein include, but are not limited to, stearic acid, calcium hydroxide, talc, corn starch, sodium stearyl fumerate, alkali-metal and alkaline earth metal salts, such as aluminum, calcium, magnesium, zinc, stearic acid, sodium stearates, magnesium stearate, zinc stearate, waxes, Stearowet®, boric acid, sodium benzoate, sodium acetate, sodium chloride, leucine, a polyethylene glycol or a methoxypolyethylene glycol such as Carbowax™, PEG 4000, PEG 5000, PEG 6000, propylene glycol, sodium oleate, glyceryl behenate, glyceryl palmitostearate, glyceryl benzoate, magnesium or sodium lauryl sulfate, and the like.

Suitable diluents for use in the solid dosage forms described herein include, but are not limited to, sugars (including lactose, sucrose, and dextrose), polysaccharides (including dextrates and maltodextrin), polyols (including mannitol, xylitol, and sorbitol), cyclodextrins and the like.

Suitable wetting agents for use in the solid dosage forms described herein include, for example, oleic acid, glyceryl monostearate, sorbitan monooleate, sorbitan monolaurate, triethanolamine oleate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monolaurate, quaternary ammonium compounds (e.g., Polyquat 10®), sodium oleate, sodium lauryl sulfate, magnesium stearate, sodium docusate, triacetin, vitamin E TPGS and the like.

Suitable surfactants for use in the solid dosage forms described herein include, for example, sodium lauryl sulfate, sorbitan monooleate, polyoxyethylene sorbitan monooleate, polysorbates, polaxomers, bile salts, glyceryl monostearate, copolymers of ethylene oxide and propylene oxide, e.g., Pluronic® (BASF), and the like.

Suitable suspending agents for use in the solid dosage forms described here include, but are not limited to, polyvinylpyrrolidone, e.g., polyvinylpyrrolidone K12, polyvinylpyrrolidone K17, polyvinylpyrrolidone K25, or polyvinylpyrrolidone K30, polyethylene glycol, e.g., the polyethylene glycol can have a molecular weight of about 300 to about 6000, or about 3350 to about 4000, or about 5400 to about 7000, vinyl pyrrolidone/vinyl acetate copolymer (S630), sodium carboxymethylcellulose, methylcellulose, hydroxy-propylmethylcellulose, polysorbate-80, hydroxyethylcellulose, sodium alginate, gums, such as, e.g., gum tragacanth and gum acacia, guar gum, xanthans, including xanthan gum, sugars, cellulosics, such as, e.g., sodium carboxymethylcellulose, methylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose, polysorbate-80, sodium alginate, polyethoxylated sorbitan monolaurate, polyethoxylated sorbitan monolaurate, povidone and the like.

Suitable antioxidants for use in the solid dosage forms described herein include, for example, e.g., butylated hydroxytoluene (BHT), sodium ascorbate, and tocopherol.

There is considerable overlap between additives used in the solid dosage forms described herein. Thus, the above-listed additives should be taken as merely exemplary, and not limiting, of the types of additives that can be included in solid dosage forms of the pharmaceutical compositions described herein.

In other embodiments, one or more layers of the pharmaceutical formulation are plasticized. Illustratively, a plasticizer is generally a high boiling point solid or liquid. Suitable plasticizers can be added from about 0.01% to about 50% by weight (w/w) of the coating composition. Plasticizers include, but are not limited to, diethyl phthalate, citrate esters, polyethylene glycol, glycerol, acetylated glycerides, triacetin, polypropylene glycol, polyethylene glycol, triethyl citrate, dibutyl sebacate, stearic acid, stearol, stearate, and castor oil.

Compressed tablets are solid dosage forms prepared by compacting the bulk blend of the formulations described above. In various embodiments, compressed tablets which are designed to dissolve in the mouth will include one or more flavoring agents. In other embodiments, the compressed tablets will include a film surrounding the final compressed tablet. In some embodiments, the film coating aids in patient compliance (e.g., Opadry® coatings or sugar coating). Film coatings including Opadry® typically range from about 1% to about 3% of the tablet weight. In other embodiments, the compressed tablets include one or more excipients.

A capsule may be prepared, for example, by placing the bulk blend of the formulation of the compound described above, inside of a capsule. In some embodiments, the formulations (non-aqueous suspensions and solutions) are placed in a soft gelatin capsule. In other embodiments, the formulations are placed in standard gelatin capsules or non-gelatin capsules such as capsules comprising HPMC. In other embodiments, the formulation is placed in a sprinkle capsule, wherein the capsule may be swallowed whole or the capsule may be opened and the contents sprinkled on food prior to eating. In some embodiments, the therapeutic dose is split into multiple (e.g., two, three, or four) capsules. In some embodiments, the entire dose of the formulation is delivered in a capsule form.

In various embodiments, the particles of the compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, and one or more excipients are dry blended and compressed into a mass, such as a tablet, having a hardness sufficient to provide a pharmaceutical composition that substantially disintegrates within less than about 30 minutes, less than about 35 minutes, less than about 40 minutes, less than about 45 minutes, less than about 50 minutes, less than about 55 minutes, or less than about 60 minutes, after oral administration, thereby releasing the formulation into the gastrointestinal fluid.

In another aspect, dosage forms may include microencapsulated formulations. In some embodiments, one or more other compatible materials are present in the microencapsulation material. Exemplary materials include, but are not limited to, pH modifiers, erosion facilitators, anti-foaming agents, antioxidants, flavoring agents, and carrier materials such as binders, suspending agents, disintegration agents, filling agents, surfactants, solubilizers, stabilizers, lubricants, wetting agents, and diluents.

Materials useful for the microencapsulation described herein include materials compatible with compounds described herein, which sufficiently isolate the compound from other non-compatible excipients.

In still other embodiments, effervescent powders are also prepared in accordance with the present disclosure. Effervescent salts have been used to disperse medicines in water for oral administration. Effervescent salts are granules or coarse powders containing a medicinal agent in a dry mixture, usually composed of sodium bicarbonate, citric acid and/or tartaric acid. When such salts are added to water, the acids and the base react to liberate carbon dioxide gas, thereby causing “effervescence.” Examples of effervescent salts include, e.g., the following ingredients: sodium bicarbonate or a mixture of sodium bicarbonate and sodium carbonate, citric acid and/or tartaric acid. Any acid-base combination that results in the liberation of carbon dioxide can be used in place of the combination of sodium bicarbonate and citric and tartaric acids, as long as the ingredients were suitable for pharmaceutical use and result in a pH of about 6.0 or higher.

In other embodiments, the formulations described herein, which include a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, are solid dispersions. Methods of producing such solid dispersions include, but are not limited to, for example, U.S. Pat. Nos. 4,343,789, 5,340,591, 5,456,923, 5,700,485, 5,723,269, and U.S. patent publication no. 2004/0013734. In still other embodiments, the formulations described herein are solid solutions. Solid solutions incorporate a substance together with the active agent and other excipients such that heating the mixture results in dissolution of the drug and the resulting composition is then cooled to provide a solid blend which can be further formulated or directly added to a capsule or compressed into a tablet. Methods of producing such solid solutions include, but are not limited to, for example, U.S. Pat. Nos. 4,151,273, 5,281,420, and 6,083,518.

In some embodiments, pharmaceutical formulations are provided that include particles of the compounds or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, and at least one dispersing agent or suspending agent for oral administration to a subject. The formulations may be a powder and/or granules for suspension, and upon admixture with water, a substantially uniform suspension is obtained.

Liquid formulation dosage forms for oral administration can be aqueous suspensions selected from the group including, but not limited to, pharmaceutically acceptable aqueous oral dispersions, emulsions, solutions, elixirs, gels, and syrups. See, e.g., Singh et al., Encyclopedia of Pharmaceutical Technology, 2nd Ed., pp. 754-757 (2002).

The aqueous suspensions and dispersions described herein can remain in a homogenous state, as defined in The USP Pharmacists' Pharmacopeia (2005 edition, chapter 905), for at least 4 hours. The homogeneity should be determined by a sampling method consistent with regard to determining homogeneity of the entire composition. In one embodiment, an aqueous suspension can be re-suspended into a homogenous suspension by physical agitation lasting less than 1 minute. In another embodiment, an aqueous suspension can be re-suspended into a homogenous suspension by physical agitation lasting less than 45 seconds. In yet another embodiment, an aqueous suspension can be re-suspended into a homogenous suspension by physical agitation lasting less than 30 seconds. In still another embodiment, no agitation is necessary to maintain a homogeneous aqueous dispersion.

The pharmaceutical compositions described herein may include sweetening agents such as, but not limited to, acacia syrup, acesulfame K, alitame, anise, apple, aspartame, banana, Bavarian cream, berry, black currant, butterscotch, calcium citrate, camphor, caramel, cherry, cherry cream, chocolate, cinnamon, bubble gum, citrus, citrus punch, citrus cream, cotton candy, cocoa, cola, cool cherry, cool citrus, cyclamate, cylamate, dextrose, eucalyptus, eugenol, fructose, fruit punch, ginger, glycyrrhetinate, glycyrrhiza (licorice) syrup, grape, grapefruit, honey, isomalt, lemon, lime, lemon cream, monoammonium glyrrhizinate (MagnaSweet®), maltol, mannitol, maple, marshmallow, menthol, mint cream, mixed berry, neohesperidine DC, neotame, orange, pear, peach, peppermint, peppermint cream, Prosweet® Powder, raspberry, root beer, rum, saccharin, safrole, sorbitol, spearmint, spearmint cream, strawberry, strawberry cream, stevia, sucralose, sucrose, sodium saccharin, saccharin, aspartame, acesulfame potassium, mannitol, talin, sucralose, sorbitol, swiss cream, tagatose, tangerine, thaumatin, tutti fruitti, vanilla, walnut, watermelon, wild cherry, wintergreen, xylitol, or any combination of these flavoring ingredients, e.g., anise-menthol, cherry-anise, cinnamon-orange, cherry-cinnamon, chocolate-mint, honey-lemon, lemon-lime, lemon-mint, menthol-eucalyptus, orange-cream, vanilla-mint, and mixtures thereof.

In some embodiments, the pharmaceutical formulations described herein can be self-emulsifying drug delivery systems (SEDDS). Emulsions are dispersions of one immiscible phase in another, usually in the form of droplets. Generally, emulsions are created by vigorous mechanical dispersion. SEDDS, as opposed to emulsions or microemulsions, spontaneously form emulsions when added to an excess of water without any external mechanical dispersion or agitation. An advantage of SEDDS is that only gentle mixing is required to distribute the droplets throughout the solution. Additionally, water or the aqueous phase can be added just prior to administration, which ensures stability of an unstable or hydrophobic active ingredient. Thus, the SEDDS provides an effective delivery system for oral and parenteral delivery of hydrophobic active ingredients. SEDDS may provide improvements in the bioavailability of hydrophobic active ingredients. Methods of producing self-emulsifying dosage forms include, but are not limited to, for example, U.S. Pat. Nos. 5,858,401, 6,667,048, and 6,960,563.

There is overlap between the above-listed additives used in the aqueous dispersions or suspensions described herein, since a given additive is often classified differently by different practitioners in the field, or is commonly used for any of several different functions. Thus, the above-listed additives should be taken as merely exemplary, and not limiting, of the types of additives that can be included in formulations described herein.

Potential excipients for intranasal formulations include, for example, U.S. Pat. Nos. 4,476,116, 5,116,817 and 6,391,452. Formulations solutions in saline, employing benzyl alcohol or other suitable preservatives, fluorocarbons, and/or other solubilizing or dispersing agents. See, for example, Ansel, H. C. et al., Pharmaceutical Dosage Forms and Drug Delivery Systems, Sixth Ed. (1995). Preferably these compositions and formulations are prepared with suitable nontoxic pharmaceutically acceptable ingredients. The choice of suitable carriers is highly dependent upon the exact nature of the nasal dosage form desired, e.g., solutions, suspensions, ointments, or gels. Nasal dosage forms generally contain large amounts of water in addition to the active ingredient. Minor amounts of other ingredients such as pH adjusters, emulsifiers or dispersing agents, preservatives, surfactants, gelling agents, or buffering and other stabilizing and solubilizing agents may also be present. Preferably, the nasal dosage form should be isotonic with nasal secretions.

For administration by inhalation, the compounds described herein may be in a form as an aerosol, a mist or a powder. Pharmaceutical compositions described herein are conveniently delivered in the form of an aerosol spray presentation from pressurized packs or a nebuliser, with the use of a suitable propellant, e.g., dichlorodifluoromethane, trichlorofluoromethane, dichlorotetrafluoroethane, carbon dioxide or other suitable gas. In the case of a pressurized aerosol, the dosage unit may be determined by providing a valve to deliver a metered amount. Capsules and cartridges of, such as, by way of example only, gelatin for use in an inhaler or insufflator may be formulated containing a powder mix of the compound described herein and a suitable powder base such as lactose or starch.

Buccal formulations that include compounds described herein may be administered using a variety of formulations which include, but are not limited to, U.S. Pat. Nos. 4,229,447, 4,596,795, 4,755,386, and 5,739,136. In addition, the buccal dosage forms described herein can further include a bioerodible (hydrolysable) polymeric carrier that also serves to adhere the dosage form to the buccal mucosa. The buccal dosage form is fabricated so as to erode gradually over a predetermined time period, wherein the delivery of the compound is provided essentially throughout. Buccal drug delivery avoids the disadvantages encountered with oral drug administration, e.g., slow absorption, degradation of the active agent by fluids present in the gastrointestinal tract and/or first-pass inactivation in the liver. With regard to the bioerodible (hydrolysable) polymeric carrier, virtually any such carrier can be used, so long as the desired drug release profile is not compromised, and the carrier is compatible with the compounds described herein, and any other components that may be present in the buccal dosage unit. Generally, the polymeric carrier comprises hydrophilic (water-soluble and water-swellable) polymers that adhere to the wet surface of the buccal mucosa. Examples of polymeric carriers useful herein include acrylic acid polymers and co, e.g., those known as “carbomers” (Carbopol®, which may be obtained from B.F. Goodrich, is one such polymer). Other components may also be incorporated into the buccal dosage forms described herein include, but are not limited to, disintegrants, diluents, binders, lubricants, flavoring, colorants, preservatives, and the like. For buccal or sublingual administration, the compositions may take the form of tablets, lozenges, or gels formulated in a conventional manner.

Transdermal formulations described herein may be administered using a variety of devices including but not limited to, U.S. Pat. Nos. 3,598,122, 3,598,123, 3,710,795, 3,731,683, 3,742,951, 3,814,097, 3,921,636, 3,972,995, 3,993,072, 3,993,073, 3,996,934, 4,031,894, 4,060,084, 4,069,307, 4,077,407, 4,201,211, 4,230,105, 4,292,299, 4,292,303, 5,336,168, 5,665,378, 5,837,280, 5,869,090, 6,923,983, 6,929,801 and 6,946,144.

The transdermal dosage forms described herein may incorporate certain pharmaceutically acceptable excipients which are conventional in the art. In one embodiment, the transdermal formulations described herein include at least three components: (1) a formulation of a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein; (2) a penetration enhancer; and (3) an aqueous adjuvant. In addition, transdermal formulations can include additional components such as, but not limited to, gelling agents, creams and ointment bases, and the like. In some embodiments, the transdermal formulation can further include a woven or non-woven backing material to enhance absorption and prevent the removal of the transdermal formulation from the skin. In other embodiments, the transdermal formulations described herein can maintain a saturated or supersaturated state to promote diffusion into the skin.

Formulations suitable for transdermal administration of compounds described herein may employ transdermal delivery devices and transdermal delivery patches and can be lipophilic emulsions or buffered, aqueous solutions, dissolved and/or dispersed in a polymer or an adhesive. Such patches may be constructed for continuous, pulsatile, or on demand delivery of pharmaceutical agents. Still further, transdermal delivery of the compounds described herein can be accomplished by means of iontophoretic patches and the like. Additionally, transdermal patches can provide controlled delivery of the compounds described herein. The rate of absorption can be slowed by using rate-controlling membranes or by trapping the compound within a polymer matrix or gel. Conversely, absorption enhancers can be used to increase absorption. An absorption enhancer or carrier can include absorbable pharmaceutically acceptable solvents to assist passage through the skin. For example, transdermal devices are in the form of a bandage comprising a backing member, a reservoir containing the compound optionally with carriers, optionally a rate controlling barrier to deliver the compound to the skin of the host at a controlled and predetermined rate over a prolonged period of time, and means to secure the device to the skin.

Formulations suitable for intramuscular, subcutaneous, or intravenous injection may include physiologically acceptable sterile aqueous or non-aqueous solutions, dispersions, suspensions or emulsions, and sterile powders for reconstitution into sterile injectable solutions or dispersions. Examples of suitable aqueous and non-aqueous carriers, diluents, solvents, or vehicles including water, ethanol, polyols (propyleneglycol, polyethylene-glycol, glycerol, cremophor and the like), suitable mixtures thereof, vegetable oils (such as olive oil) and injectable organic esters such as ethyl oleate. Proper fluidity can be maintained, for example, by the use of a coating such as lecithin, by the maintenance of the required particle size in the case of dispersions, and by the use of surfactants. Formulations suitable for subcutaneous injection may also contain additives such as preserving, wetting, emulsifying, and dispensing agents. Prevention of the growth of microorganisms can be ensured by various antibacterial and antifungal agents, such as parabens, chlorobutanol, phenol, sorbic acid, and the like. It may also be desirable to include isotonic agents, such as sugars, sodium chloride, and the like. Prolonged absorption of the injectable pharmaceutical form can be brought about by the use of agents delaying absorption, such as aluminum monostearate and gelatin.

For intravenous injections, compounds described herein may be formulated in aqueous solutions, preferably in physiologically compatible buffers such as Hank's solution, Ringer's solution, or physiological saline buffer. For transmucosal administration, penetrants appropriate to the barrier to be permeated are used in the formulation. Such penetrants are generally recognized in the field. For other parenteral injections, appropriate formulations may include aqueous or nonaqueous solutions, preferably with physiologically compatible buffers or excipients. Such excipients are generally recognized in the field.

Parenteral injections may involve bolus injection or continuous infusion. Formulations for injection may be presented in unit dosage form, e.g., in ampoules or in multi-dose containers, with an added preservative. The pharmaceutical composition described herein may be in a form suitable for parenteral injection as a sterile suspensions, solutions or emulsions in oily or aqueous vehicles, and may contain formulatory agents such as suspending, stabilizing and/or dispersing agents. Pharmaceutical formulations for parenteral administration include aqueous solutions of the active compounds in water-soluble form. Additionally, suspensions of the active compounds may be prepared as appropriate oily injection suspensions. Suitable lipophilic solvents or vehicles include fatty oils such as sesame oil, or synthetic fatty acid esters, such as ethyl oleate or triglycerides, or liposomes. Aqueous injection suspensions may contain substances which increase the viscosity of the suspension, such as sodium carboxymethyl cellulose, sorbitol, or dextran. Optionally, the suspension may also contain suitable stabilizers or agents which increase the solubility of the compounds to allow for the preparation of highly concentrated solutions. Alternatively, the active ingredient may be in powder form for constitution with a suitable vehicle, e.g., sterile pyrogen-free water, before use.

In certain embodiments, delivery systems for pharmaceutical compounds may be employed, such as, for example, liposomes and emulsions. In certain embodiments, compositions provided herein also include an mucoadhesive polymer, selected from among, for example, carboxymethylcellulose, carbomer (acrylic acid polymer), poly(methylmethacrylate), polyacrylamide, polycarbophil, acrylic acid/butyl acrylate copolymer, sodium alginate and dextran.

In some embodiments, the compounds described herein may be administered topically and are formulated into a variety of topically administrable compositions, such as solutions, suspensions, lotions, gels, pastes, medicated sticks, balms, creams or ointments. Such pharmaceutical compounds can contain solubilizers, stabilizers, tonicity enhancing agents, buffers and preservatives.

The compounds described herein may also be formulated in rectal compositions such as enemas, rectal gels, rectal foams, rectal aerosols, suppositories, jelly suppositories, or retention enemas, containing conventional suppository bases such as cocoa butter or other glycerides, as well as synthetic polymers such as polyvinylpyrrolidone, PEG, and the like. In suppository forms of the compositions, a low-melting wax such as, but not limited to, a mixture of fatty acid glycerides, optionally in combination with cocoa butter is first melted.

Generally, an agent, such as a compound of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, is administered in an amount effective for amelioration of, or prevention of the development of symptoms of, the disease or disorder (i.e., a therapeutically effective amount). Thus, a therapeutically effective amount can be an amount that is capable of at least partially preventing or reversing a disease or disorder. The dose required to obtain an effective amount may vary depending on the agent, formulation, disease or disorder, and individual to whom the agent is administered.

Determination of effective amounts may also involve in vitro assays in which varying doses of agent are administered to cells in culture and the concentration of agent effective for ameliorating some or all symptoms is determined in order to calculate the concentration required in vivo. Effective amounts may also be based in in vivo animal studies.

An agent can be administered prior to, concurrently with and subsequent to the appearance of symptoms of a disease or disorder. In some embodiments, an agent is administered to a subject with a family history of the disease or disorder, or who has a phenotype that may indicate a predisposition to a disease or disorder, or who has a genotype which predisposes the subject to the disease or disorder.

In some embodiments, the compositions described herein are provided as pharmaceutical and/or therapeutic compositions. The pharmaceutical and/or therapeutic compositions of the present invention can be administered in a number of ways depending upon whether local or systemic treatment is desired and upon the area to be treated. Administration can be topical (including ophthalmic and to mucous membranes including vaginal and rectal delivery), pulmonary (e.g., by inhalation or insufflation of powders or aerosols, including by nebulizer; intratracheal, intranasal, epidermal and transdermal), oral or parenteral. Parenteral administration includes intravenous, intraarterial, subcutaneous, intraperitoneal or intramuscular injection or infusion; or intracranial, e.g., intrathecal or intraventricular, administration. Compositions and formulations for topical administration can include transdermal patches, ointments, lotions, creams, gels, drops, suppositories, sprays, liquids and powders. Conventional carriers; aqueous, powder, or oily bases; thickeners; and the like can be necessary or desirable. Compositions and formulations for oral administration include powders or granules, suspensions or solutions in water or non-aqueous media, capsules, sachets or tablets. Thickeners, flavoring agents, diluents, emulsifiers, dispersing aids or binders can be desirable. Compositions and formulations for parenteral, intrathecal or intraventricular administration can include sterile aqueous solutions that can also contain buffers, diluents and other suitable additives such as, but not limited to, penetration enhancers, carrier compounds and other pharmaceutically acceptable carriers or excipients. Pharmaceutical and/or therapeutic compositions of the present invention include, but are not limited to, solutions, emulsions, and liposome containing formulations. These compositions can be generated from a variety of components that include, but are not limited to, preformed liquids, self-emulsifying solids and self-emulsifying semisolids.

The pharmaceutical and/or therapeutic formulations, which can conveniently be presented in unit dosage form, can be prepared according to conventional techniques well known in the pharmaceutical/nutriceutical industries. Such techniques include the step of bringing into association the active ingredients with the pharmaceutical carrier(s) or excipient(s). In general the formulations are prepared by uniformly and intimately bringing into association the active ingredients with liquid carriers or finely divided solid carriers or both, and then, if necessary, shaping the product. The compositions of the present invention can be formulated into any of many possible dosage forms such as, but not limited to, tablets, capsules, liquid syrups, soft gels, suppositories, and enemas. The compositions of the present invention can also be formulated as suspensions in aqueous, non-aqueous, oil-based, or mixed media. Suspensions can further contain substances that increase the viscosity of the suspension including, for example, sodium carboxymethylcellulose, sorbitol and/or dextran. The suspension can also contain stabilizers. In one embodiment of the present invention the pharmaceutical compositions can be formulated and used as foams. Pharmaceutical foams include formulations such as, but not limited to, emulsions, microemulsions, creams, jellies and liposomes. While basically similar in nature these formulations vary in the components and the consistency of the final product.

The pharmaceutical composition described herein may be in unit dosage forms suitable for single administration of precise dosages. In unit dosage form, the formulation is divided into unit doses containing appropriate quantities of one or more compound. The unit dosage may be in the form of a package containing discrete quantities of the formulation. Non-limiting examples are packaged tablets or capsules, and powders in vials or ampoules. Aqueous suspension compositions can be packaged in single-dose non-reclosable containers. Alternatively, multiple-dose reclosable containers can be used, in which case it is typical to include a preservative in the composition. By way of example only, formulations for parenteral injection may be presented in unit dosage form, which include, but are not limited to ampoules, or in multi-dose containers, with an added preservative.

Dosing and administration regimes are tailored by the clinician, or others skilled in the pharmacological arts, based upon well-known pharmacological and therapeutic considerations including, but not limited to, the desired level of therapeutic effect, and the practical level of therapeutic effect obtainable. Generally, it is advisable to follow well-known pharmacological principles for administrating chemotherapeutic agents (e.g., it is generally advisable to not change dosages by more than 50% at time and no more than every 3-4 agent half-lives). For compositions that have relatively little or no dose-related toxicity considerations, and where maximum efficacy is desired, doses in excess of the average required dose are not uncommon. This approach to dosing is commonly referred to as the “maximal dose” strategy. In certain embodiments, the compounds are administered to a subject at a dose of about 0.01 mg/kg to about 200 mg/kg, more preferably at about 0.1 mg/kg to about 100 mg/kg, even more preferably at about 0.5 mg/kg to about 50 mg/kg. When the compounds described herein are co-administered with another agent (e.g., as sensitizing agents), the effective amount may be less than when the agent is used alone. Dosing may be once per day or multiple times per day for one or more consecutive days.

Methods of Treatment

The present disclosure provides compounds and methods for inhibiting the activity of NSD1, NSD2 or NSD3. In certain embodiments, the disclosure provides compounds that bind to and/or inhibit NSD1, NSD2 or NSD3 activity.

Inhibition of NSD1 activity may be assessed and demonstrated by a wide variety of ways known in the art. Non-limiting examples include measure (a) a direct decrease in NSD1 activity; (b) a decrease in cell proliferation and/or cell viability; (c) an increase in cell differentiation; (d) a decrease in the levels of downstream targets of NSD1 activity; and (e) decrease in tumor volume and/or tumor volume growth rate. Kits and commercially available assays can be utilized for determining one or more of the above.

The disclosure provides compounds and methods for treating a subject suffering from a disease, comprising administering a compound or salt described herein, for example, a compound or salt of any of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, to the subject. In certain embodiments, the disease is selected from a disease associated with NSD1 expression (e.g., aberrant expression, overexpression, etc.) and/or activity (e.g., cancer). In certain embodiments, the disease is mediated by NSD1 activity and/or expression (e.g., aberrant expression, overexpression, etc.). In certain embodiments, the disease is leukemia, hematologic malignancies, solid tumor cancer, glioma, other cancers, etc.

In some embodiments, the disclosure provides a method for treating cancer in a subject, comprising administering a compound or salt described herein, for example, a compound or salt of any of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, to the subject. In some embodiments, the cancer is mediated by a NSD1 expression (e.g., aberrant expression, overexpression, etc.) and/or activity. In certain embodiments, the cancer is leukemia, breast cancer, prostate cancer, pancreatic cancer, lung cancer, thyroid cancer, liver cancer, skin cancer, or a brain tumor.

In certain embodiments, the disclosure provides method of treating a disease in a subject, wherein the method comprises determining if the subject has an NSD1-mediated condition (e.g., cancer) and administering to the subject a therapeutically effective dose of a compound or salt described herein, for example, a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein.

In some embodiments, NSD1 expression (e.g., aberrant expression, overexpression, etc.) and/or activity has been identified in hematological malignancies, e.g., cancers that affect blood, bone marrow and/or lymph nodes. Accordingly, certain embodiments are directed to administration of a compound or salt described herein, for example, a compound or salt of any of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, to a subject with a hematological malignancy. Such malignancies include, but are not limited to, leukemias and lymphomas. For example, the presently disclosed compounds can be used for treatment of diseases such as ALL, AML, Chronic lymphocytic leukemia (CLL), small lymphocytic lymphoma (SLL), Chronic myelogenous leukemia (CML), Acute monocytic leukemia (AMoL), hairy cell leukemia, and/or other leukemias. In certain embodiments, the compounds or salts of the disclosure can be used for treatment of lymphomas such as all subtypes of Hodgkins lymphoma or non-Hodgkins lymphoma.

Determining whether a tumor or cancer expresses (e.g., overexpresses, aberrantly expresses, etc.) NSD1 can be undertaken by assessing the nucleotide sequence encoding NSD1 or by assessing the amino acid sequence of NSD1. Methods for detecting an NSD1 nucleotide sequence are known by those of skill in the art. These methods include, but are not limited to, polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assays, polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) assays, real-time PCR assays, PCR sequencing, mutant allele-specific PCR amplification (MASA) assays, direct sequencing, primer extension reactions, electrophoresis, oligonucleotide ligation assays, hybridization assays, TaqMan assays, SNP genotyping assays, high resolution melting assays and microarray analyses. Methods for detecting an NSD1 protein are known by those of skill in the art. These methods include, but are not limited to, detection using a binding agent, e.g., an antibody, specific for NSD1, protein electrophoresis and Western blotting, and direct peptide sequencing.

Methods for determining whether a tumor or cancer expresses (e.g., overexpresses, aberrantly expresses, etc.) NSD1 or is mediated by NSD1 activity can use a variety of samples. In some embodiments, the sample is taken from a subject having a tumor or cancer. In some embodiments, the sample is taken from a subject having a cancer or tumor. In some embodiments, the sample is a fresh tumor/cancer sample. In some embodiments, the sample is a frozen tumor/cancer sample. In some embodiments, the sample is a formalin-fixed paraffin-embedded sample. In some embodiments, the sample is processed to a cell lysate. In some embodiments, the sample is processed to DNA or RNA.

In certain embodiments, the disclosure provides a method of inhibiting NSD1 activity in a sample, comprising administering the compound or salt described herein to said sample comprising NSD1.

The disclosure provides methods for treating a disease by administering a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, to a subject suffering from the disease, wherein the compound binds NSD1 and/or inhibits NSD1 activity. In certain embodiments, the compound covalently binds to NSD1. In certain embodiments, the compound noncovalently binds to NSD1.

The disclosure also relates to a method of treating a hyperproliferative disorder in a mammal that comprises administering to the mammal a therapeutically effective amount of a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein. In some embodiments, the method relates to the treatment of cancer such as acute myeloid leukemia, cancer in adolescents, adrenocortical carcinoma childhood, AIDS-related cancers, e.g., Lymphoma and Kaposi's Sarcoma, anal cancer, appendix cancer, astrocytomas, atypical teratoid, basal cell carcinoma, bile duct cancer, bladder cancer, bone cancer, brain stem glioma, brain tumor, breast cancer, bronchial tumors, burkitt lymphoma, carcinoid tumor, atypical teratoid, embryonal tumors, germ cell tumor, primary lymphoma, cervical cancer, childhood cancers, chordoma, cardiac tumors, chronic lymphocytic leukemia (CLL), chronic myelogenous leukemia (CML), chronic myleoproliferative disorders, colon cancer, colorectal cancer, craniopharyngioma, cutaneous T-cell lymphoma, extrahepatic ductal carcinoma in situ (DCIS), embryonal tumors, CNS cancer, endometrial cancer, ependymoma, esophageal cancer, esthesioneuroblastoma, ewing sarcoma, extracranial germ cell tumor, extragonadal germ cell tumor, eye cancer, fibrous histiocytoma of bone, gall bladder cancer, gastric cancer, gastrointestinal carcinoid tumor, gastrointestinal stromal tumors (GIST), germ cell tumor, gestational trophoblastic tumor, hairy cell leukemia, head and neck cancer, heart cancer, liver cancer, hodgkin lymphoma, hypopharyngeal cancer, intraocular melanoma, islet cell tumors, pancreatic neuroendocrine tumors, kidney cancer, laryngeal cancer, lip and oral cavity cancer, liver cancer, lobular carcinoma in situ (LCIS), lung cancer, lymphoma, metastatic squamous neck cancer with occult primary, midline tract carcinoma, mouth cancer multiple endocrine neoplasia syndromes, multiple myeloma/plasma cell neoplasm, mycosis fungoides, myelodysplastic syndromes, myelodysplastic/myeloproliferative neoplasms, multiple myeloma, merkel cell carcinoma, malignant mesothelioma, malignant fibrous histiocytoma of bone and osteosarcoma, nasal cavity and paranasal sinus cancer, nasopharyngeal cancer, neuroblastoma, non-hodgkin lymphoma, non-small cell lung cancer (NSCLC), oral cancer, lip and oral cavity cancer, oropharyngeal cancer, ovarian cancer, pancreatic cancer, papillomatosis, paraganglioma, paranasal sinus and nasal cavity cancer, parathyroid cancer, penile cancer, pharyngeal cancer, pleuropulmonary blastoma, primary central nervous system (CNS) lymphoma, prostate cancer, rectal cancer, transitional cell cancer, retinoblastoma, rhabdomyosarcoma, salivary gland cancer, skin cancer, stomach (gastric) cancer, small cell lung cancer, small intestine cancer, soft tissue sarcoma, T-Cell lymphoma, testicular cancer, throat cancer, thymoma and thymic carcinoma, thyroid cancer, transitional cell cancer of the renal pelvis and ureter, trophoblastic tumor, unusual cancers of childhood, urethral cancer, uterine sarcoma, vaginal cancer, vulvar cancer, or Viral-Induced cancer. In some embodiments, the method relates to the treatment of a non-cancerous hyperproliferative disorder such as benign hyperplasia of the skin, e.g., psoriasis, restenosis, or prostate, e.g., benign prostatic hypertrophy (BPH). In some cases, the method relates to the treatment of leukemia, hematologic malignancy, solid tumor cancer, prostate cancer, e.g., castration-resistant prostate cancer, breast cancer, Ewing's sarcoma, bone sarcoma, primary bone sarcoma, T-cell prolymphocyte leukemia, glioma, glioblastoma, liver cancer, e.g., hepatocellular carcinoma, or diabetes.

Subjects that can be treated with compounds of the invention, or pharmaceutically acceptable salt, ester, prodrug, solvate, tautomer, stereoisomer, isotopologue, hydrate or derivative of the compounds, according to the methods of this invention include, for example, subjects that have been diagnosed as having acute myeloid leukemia, acute myeloid leukemia, cancer in adolescents, adrenocortical carcinoma childhood, AIDS-related cancers, e.g., Lymphoma and Kaposi's Sarcoma, anal cancer, appendix cancer, astrocytomas, atypical teratoid, basal cell carcinoma, bile duct cancer, bladder cancer, bone cancer, brain stem glioma, brain tumor, breast cancer, bronchial tumors, burkitt lymphoma, carcinoid tumor, atypical teratoid, embryonal tumors, germ cell tumor, primary lymphoma, cervical cancer, childhood cancers, chordoma, cardiac tumors, chronic lymphocytic leukemia (CLL), chronic myelogenous leukemia (CML), chronic myleoproliferative disorders, colon cancer, colorectal cancer, craniopharyngioma, cutaneous T-cell lymphoma, extrahepatic ductal carcinoma in situ (DCIS), embryonal tumors, CNS cancer, endometrial cancer, ependymoma, esophageal cancer, esthesioneuroblastoma, ewing sarcoma, extracranial germ cell tumor, extragonadal germ cell tumor, eye cancer, fibrous histiocytoma of bone, gall bladder cancer, gastric cancer, gastrointestinal carcinoid tumor, gastrointestinal stromal tumors (GIST), germ cell tumor, gestational trophoblastic tumor, hairy cell leukemia, head and neck cancer, heart cancer, liver cancer, hodgkin lymphoma, hypopharyngeal cancer, intraocular melanoma, islet cell tumors, pancreatic neuroendocrine tumors, kidney cancer, laryngeal cancer, lip and oral cavity cancer, liver cancer, lobular carcinoma in situ (LCIS), lung cancer, lymphoma, metastatic squamous neck cancer with occult primary, midline tract carcinoma, mouth cancer multiple endocrine neoplasia syndromes, multiple myeloma/plasma cell neoplasm, mycosis fungoides, myelodysplastic syndromes, myelodysplastic/myeloproliferative neoplasms, multiple myeloma, merkel cell carcinoma, malignant mesothelioma, malignant fibrous histiocytoma of bone and osteosarcoma, nasal cavity and paranasal sinus cancer, nasopharyngeal cancer, neuroblastoma, non-hodgkin lymphoma, non-small cell lung cancer (NSCLC), oral cancer, lip and oral cavity cancer, oropharyngeal cancer, ovarian cancer, pancreatic cancer, papillomatosis, paraganglioma, paranasal sinus and nasal cavity cancer, parathyroid cancer, penile cancer, pharyngeal cancer, pleuropulmonary blastoma, primary central nervous system (CNS) lymphoma, prostate cancer, rectal cancer, transitional cell cancer, retinoblastoma, rhabdomyosarcoma, salivary gland cancer, skin cancer, stomach (gastric) cancer, small cell lung cancer, small intestine cancer, soft tissue sarcoma, T-Cell lymphoma, testicular cancer, throat cancer, thymoma and thymic carcinoma, thyroid cancer, transitional cell cancer of the renal pelvis and ureter, trophoblastic tumor, unusual cancers of childhood, urethral cancer, uterine sarcoma, vaginal cancer, vulvar cancer, Viral-Induced cancer, leukemia, hematologic malignancy, solid tumor cancer, prostate cancer, castration-resistant prostate cancer, breast cancer, Ewing's sarcoma, bone sarcoma, primary bone sarcoma, T-cell prolymphocyte leukemia, glioma, glioblastoma, hepatocellular carcinoma, liver cancer, or diabetes. In some embodiments subjects that are treated with the compounds of the invention include subjects that have been diagnosed as having a non-cancerous hyperproliferative disorder such as benign hyperplasia of the skin, e.g., psoriasis, restenosis, or prostate, e.g., benign prostatic hypertrophy (BPH).

The invention further provides methods of inhibiting NSD1 activity, by contacting the NSD1 with an effective amount of a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein (e.g., by contacting a cell, tissue, or organ that expresses NSD1). In some embodiments, the invention provides methods of inhibiting NSD1 activity in subject including but not limited to rodents and mammals, e.g., humans, by administering into the subject an effective amount of a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein. In some embodiments, the percentage inhibition exceeds 25%, 30%, 40%, 50%, 60%, 70%, 80%, or 90%.

In some embodiments, the disclosure provides methods of inhibiting NSD1 activity in a cell by contacting the cell with an amount of a compound of the invention sufficient to inhibit the activity. In some embodiments, the invention provides methods of inhibiting NSD1 activity in a tissue by contacting the tissue with an amount of a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, sufficient to inhibit the NSD1 activity in the tissue. In some embodiments, the invention provides methods of inhibiting NSD1 activity in an organism (e.g., mammal, human, etc.) by contacting the organism with an amount of a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, sufficient to inhibit the NSD1 activity in the organism.

The compositions containing the compounds or salts thereof described herein can be administered for prophylactic and/or therapeutic treatments. In therapeutic applications, the compositions are administered to a patient already suffering from a disease, in an amount sufficient to cure or at least partially arrest the symptoms of the disease. Amounts effective for this use will depend on the severity and course of the disease, previous therapy, the patient's health status, weight, and response to the drugs, and the judgment of the treating clinician.

In prophylactic applications, compositions containing the compounds or salts thereof described herein are administered to a patient susceptible to or otherwise at risk of a particular disease, disorder or condition. Such an amount is defined to be a “prophylactically effective amount or dose.” In this use, the precise amounts also depend on the patient's state of health, weight, and the like. When used in a patient, effective amounts for this use will depend on the severity and course of the disease, disorder or condition, previous therapy, the patient's health status and response to the drugs, and the judgment of the treating clinician.

In the case wherein the patient's condition does not improve, upon the clinician's discretion the administration of the compounds may be administered chronically, that is, for an extended period of time, including throughout the duration of the patient's life in order to ameliorate or otherwise control or limit the symptoms of the patient's disease.

In the case wherein the patient's status does improve, upon the clinician's discretion the administration of the compounds may be given continuously; alternatively, the dose of drug being administered may be temporarily reduced or temporarily suspended for a certain length of time (i.e., a “drug holiday”). The length of the drug holiday can vary between 2 days and 1 year, including by way of example only, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 10 days, 12 days, 15 days, 20 days, 28 days, 35 days, 50 days, 70 days, 100 days, 120 days, 150 days, 180 days, 200 days, 250 days, 280 days, 300 days, 320 days, 350 days, or 365 days. The dose reduction during a drug holiday may be from about 10% to about 100%, including, by way of example only, about 10%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, about 75%, about 80%, about 85%, about 90%, about 95%, or about 100%.

Once improvement of the patient's conditions has occurred, a maintenance dose is administered if necessary. Subsequently, the dosage or the frequency of administration, or both, can be reduced, as a function of the symptoms, to a level at which the improved disease, disorder or condition is retained. Patients can, however, require intermittent treatment on a long-term basis upon any recurrence of symptoms.

The amount of a given agent that will correspond to such an amount will vary depending upon factors such as the particular compound, disease and its severity, the identity (e.g., weight) of the subject or host in need of treatment, but can nevertheless be determined in a manner recognized in the field according to the particular circumstances surrounding the case, including, e.g., the specific agent being administered, the route of administration, the condition being treated, and the subject or host being treated. In general, however, doses employed for adult human treatment will typically be in the range of about 0.02-about 5000 mg per day, in some embodiments, about 1-about 1500 mg per day. The desired dose may conveniently be presented in a single dose or as divided doses administered simultaneously (or over a short period of time) or at appropriate intervals, for example as two, three, four or more sub-doses per day.

Toxicity and therapeutic efficacy of such therapeutic regimens can be determined by standard pharmaceutical procedures in cell cultures or experimental animals, including, but not limited to, the determination of the LD₅₀ (the dose lethal to 50% of the population) and the ED₅₀ (the dose therapeutically effective in 50% of the population). The dose ratio between the toxic and therapeutic effects is the therapeutic index and it can be expressed as the ratio between LD₅₀ and ED₅₀. Compounds exhibiting high therapeutic indices are preferred. The data obtained from cell culture assays and animal studies can be used in formulating a range of dosage for use in human. The dosage of such compounds lies preferably within a range of circulating concentrations that include the ED₅₀ with minimal toxicity. The dosage may vary within this range depending upon the dosage form employed and the route of administration utilized.

Combination Therapies

Provided herein are methods for combination therapies in which an agent known to modulate other pathways, or other components of the same pathway, or even overlapping sets of target enzymes are used in combination with a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein. In one aspect, such therapy includes but is not limited to the combination of one or more compounds of the invention with chemotherapeutic agents, targeted agents, therapeutic antibodies, and radiation treatment, to provide a synergistic or additive therapeutic effect.

In general, the compositions described herein and, in embodiments where combinational therapy is employed, other agents do not have to be administered in the same pharmaceutical composition, and may, because of different physical and chemical characteristics, have to be administered by different routes. The determination of the mode of administration and the advisability of administration, where possible, in the same pharmaceutical composition, is well within the knowledge of the clinician. The initial administration can be made according to established protocols recognized in the field, and then, based upon the observed effects, the dosage, modes of administration and times of administration can be modified by the clinician.

In certain instances, it may be appropriate to administer at least one compound described herein in combination with another therapeutic agent. By way of example only, if one of the side effects experienced by a patient upon receiving one of the compounds herein, such as a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, is nausea, then it may be appropriate to administer an anti-nausea agent in combination with the initial therapeutic agent. Or, by way of example only, the therapeutic effectiveness of one of the compounds described herein may be enhanced by administration of an adjuvant (i.e., by itself the adjuvant may have minimal therapeutic benefit, but in combination with another therapeutic agent, the overall therapeutic benefit to the patient is enhanced). Or, by way of example only, the benefit experienced by a patient may be increased by administering one of the compounds described herein with another therapeutic agent (which also includes a therapeutic regimen) that also has therapeutic benefit. In any case, regardless of the disease, disorder or condition being treated, the overall benefit experienced by the patient may simply be additive of the two therapeutic agents or the patient may experience a synergistic benefit.

The particular choice of compounds used will depend upon the diagnosis and judgment of the condition of the patient and the appropriate treatment protocol. The compounds may be administered concurrently (e.g., simultaneously, essentially simultaneously or within the same treatment protocol) or sequentially, depending upon the nature of the disease, disorder, or condition, the condition of the patient, and the actual choice of compounds used. The determination of the order of administration, and the number of repetitions of administration of each therapeutic agent during a treatment protocol, is well within the knowledge of the clinician after evaluation of the disease being treated and the condition of the patient.

Therapeutically-effective dosages can vary when the drugs are used in treatment combinations. Methods for experimentally determining therapeutically-effective dosages of drugs and other agents for use in combination treatment regimens are described in the literature. For example, the use of metronomic dosing, i.e., providing more frequent, lower doses in order to minimize toxic side effects, has been described extensively in the literature. Combination treatment further includes periodic treatments that start and stop at various times to assist with the clinical management of the patient.

For combination therapies described herein, dosages of the co-administered compounds will of course vary depending on the type of co-drug employed, on the specific drug employed, on the disease being treated and so forth. In addition, when co-administered with one or more biologically active agents, the compound provided herein may be administered either simultaneously with the biologically active agent(s), or sequentially. If administered sequentially, the attending physician will decide on the appropriate sequence of administering protein in combination with the biologically active agent(s).

In any case, the multiple therapeutic agents (one of which is a compound or salt of any one of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, may be administered in any order or even simultaneously. If simultaneously, the multiple therapeutic agents may be provided in a single, unified form, or in multiple forms (by way of example only, either as a single pill or as two separate pills). One of the therapeutic agents may be given in multiple doses, or both may be given as multiple doses. If not simultaneous, the timing between the multiple doses may vary from more than zero weeks to less than four weeks. In addition, the combination methods, compositions and formulations are not to be limited to the use of only two agents; the use of multiple therapeutic combinations are also envisioned.

It is understood that the dosage regimen to treat, prevent, or ameliorate the condition(s) for which relief is sought, can be modified in accordance with a variety of factors. These factors include the disorder or condition from which the subject suffers, as well as the age, weight, sex, diet, and medical condition of the subject. Thus, the dosage regimen actually employed can vary widely and therefore can deviate from the dosage regimens set forth herein.

The pharmaceutical agents which make up the combination therapy disclosed herein may be a combined dosage form or in separate dosage forms intended for substantially simultaneous administration. The pharmaceutical agents that make up the combination therapy may also be administered sequentially, with either therapeutic compound being administered by a regimen calling for two-step administration. The two-step administration regimen may call for sequential administration of the active agents or spaced-apart administration of the separate active agents. The time period between the multiple administration steps may range from, a few minutes to several hours, depending upon the properties of each pharmaceutical agent, such as potency, solubility, bioavailability, plasma half-life and kinetic profile of the pharmaceutical agent. Circadian variation of the target molecule concentration may also determine the optimal dose interval.

In addition, the compounds described herein also may be used in combination with procedures that may provide additional or synergistic benefit to the patient. By way of example only, patients are expected to find therapeutic and/or prophylactic benefit in the methods described herein, wherein pharmaceutical composition of a compound disclosed herein and/or combinations with other therapeutics are combined with genetic testing to determine whether that individual is a carrier of a mutant gene that is known to be correlated with certain diseases or conditions.

The compounds described herein and combination therapies can be administered before, during or after the occurrence of a disease, and the timing of administering the composition containing a compound can vary. Thus, for example, the compounds can be used as a prophylactic and can be administered continuously to subjects with a propensity to develop conditions or diseases in order to prevent the occurrence of the disease. The compounds and compositions can be administered to a subject during or as soon as possible after the onset of the symptoms. The administration of the compounds can be initiated within the first 48 hours of the onset of the symptoms, preferably within the first 48 hours of the onset of the symptoms, more preferably within the first 6 hours of the onset of the symptoms, and most preferably within 3 hours of the onset of the symptoms. The initial administration can be via any route practical, such as, for example, an intravenous injection, a bolus injection, infusion over about 5 minutes to about 5 hours, a pill, a capsule, transdermal patch, buccal delivery, and the like, or combination thereof. A compound is preferably administered as soon as is practicable after the onset of a disease is detected or suspected, and for a length of time necessary for the treatment of the disease, such as, for example, from 1 day to about 3 months. The length of treatment can vary for each subject, and the length can be determined using the known criteria. For example, the compound or a formulation containing the compound can be administered for at least 2 weeks, preferably about 1 month to about 5 years.

Particularly when the compounds and pharmaceutical compositions herein are used for treating cancer, they may be co-administered with one or more chemotherapeutics. Many chemotherapeutics are presently known in the art and can be used in combination with the compounds herein. In some embodiments, the chemotherapeutic is selected from the group consisting of mitotic inhibitors, alkylating agents, anti-metabolites, intercalating antibiotics, growth factor inhibitors, cell cycle inhibitors, enzyme inhibitors, topoisomerase inhibitors, protein-protein interaction inhibitors, biological response modifiers, anti-hormones, angiogenesis inhibitors, and anti-androgens.

Non-limiting examples are chemotherapeutic agents, cytotoxic agents, and non-peptide small molecules such as Gleevec® (Imatinib Mesylate), Velcade® (bortezomib), Casodex (bicalutamide), Iressa® (gefitinib), and Adriamycin as well as a host of chemotherapeutic agents. Non-limiting examples of chemotherapeutic agents include alkylating agents such as thiotepa and cyclosphosphamide (CYTOXAN™); alkyl sulfonates such as busulfan, improsulfan and piposulfan; aziridines such as benzodopa, carboquone, meturedopa, and uredopa; ethylenimines and methylamelamines including altretamine, triethylenemelamine, trietylenephosphoramide, triethylenethiophosphaoramide and trimethylolomelamine; nitrogen mustards such as chlorambucil, chlornaphazine, cholophosphamide, estramustine, ifosfamide, mechlorethamine, mechlorethamine oxide hydrochloride, melphalan, novembichin, phenesterine, prednimustine, trofosfamide, uracil mustard; nitrosureas such as carmustine, chlorozotocin, fotemustine, lomustine, nimustine, ranimustine; antibiotics such as aclacinomysins, actinomycin, authramycin, azaserine, bleomycins, cactinomycin, calicheamicin, carabicin, carminomycin, carzinophilin, Casodex™, chromomycins, dactinomycin, daunorubicin, detorubicin, 6-diazo-5-oxo-L-norleucine, doxorubicin, epirubicin, esorubicin, idarubicin, marcellomycin, mitomycins, mycophenolic acid, nogalamycin, olivomycins, peplomycin, potfiromycin, puromycin, quelamycin, rodorubicin, streptonigrin, streptozocin, tubercidin, ubenimex, zinostatin, zorubicin; anti-metabolites such as methotrexate and 5-fluorouracil (5-FU); folic acid analogues such as denopterin, methotrexate, pteropterin, trimetrexate; purine analogs such as fludarabine, 6-mercaptopurine, thiamiprine, thioguanine; pyrimidine analogs such as ancitabine, azacitidine, 6-azauridine, carmofur, cytarabine, dideoxyuridine, doxifluridine, enocitabine, floxuridine, androgens such as calusterone, dromostanolone propionate, epitiostanol, mepitiostane, testolactone; anti-adrenals such as aminoglutethimide, mitotane, trilostane; folic acid replenisher such as frolinic acid; aceglatone; aldophosphamide glycoside; aminolevulinic acid; amsacrine; bestrabucil; bisantrene; edatraxate; defofamine; demecolcine; diaziquone; elfomithine; elliptinium acetate; etoglucid; gallium nitrate; hydroxyurea; lentinan; lonidamine; mitoguazone; mitoxantrone; mopidamol; nitracrine; pentostatin; phenamet; pirarubicin; podophyllinic acid; 2-ethylhydrazide; procarbazine; PSK®; razoxane; sizofiran; spirogermanium; tenuazonic acid; triaziquone; 2,2′,2″-trichlorotriethylamine; urethan; vindesine; dacarbazine; mannomustine; mitobronitol; mitolactol; pipobroman; gacytosine; arabinoside (“Ara-C”); cyclophosphamide; thiotepa; taxanes, e.g., paclitaxel (TAXOL™, Bristol-Myers Squibb Oncology, Princeton, N.J.) and docetaxel (TAXOTERE™, Rhone-Poulenc Rorer, Antony, France); retinoic acid; esperamicins; capecitabine; and pharmaceutically acceptable salts, acids or derivatives of any of the above. Also included as suitable chemotherapeutic cell conditioners are anti-hormonal agents that act to regulate or inhibit hormone action on tumors such as anti-estrogens including for example tamoxifen, (Nolvadex™), raloxifene, aromatase inhibiting 4(5)-imidazoles, 4-hydroxytamoxifen, trioxifene, keoxifene, LY 117018, onapristone, and toremifene (Fareston); and anti-androgens such as flutamide, nilutamide, bicalutamide, leuprolide, and goserelin; chlorambucil; gemcitabine; 6-thioguanine; mercaptopurine; methotrexate; platinum analogs such as cisplatin and carboplatin; vinblastine; platinum; etoposide (VP-16); ifosfamide; mitomycin C; mitoxantrone; vincristine; vinorelbine; navelbine; novantrone; teniposide; daunomycin; aminopterin; xeloda; ibandronate; camptothecin-11 (CPT-11); topoisomerase inhibitor RFS 2000; difluoromethylornithine (DMFO). Where desired, the compounds or pharmaceutical composition of the present invention can be used in combination with commonly prescribed anti-cancer drugs such as Herceptin®, Avastin®, Erbitux®, Rituxan®, Taxol®, Arimidex®, Taxotere®, ABVD, AVICINE, Abagovomab, Acridine carboxamide, Adecatumumab, 17-N-Allylamino-17-demethoxygeldanamycin, Alpharadin, Alvocidib, 3-Aminopyridine-2-carboxaldehyde thiosemicarbazone, Amonafide, Anthracenedione, Anti-CD22 immunotoxins, Antineoplastic, Antitumorigenic herbs, Apaziquone, Atiprimod, Azathioprine, Belotecan, Bendamustine, BIBW 2992, Biricodar, Brostallicin, Bryostatin, Buthionine sulfoximine, CBV (chemotherapy), Calyculin, cell-cycle nonspecific antineoplastic agents, Dichloroacetic acid, Discodermolide, Elsamitrucin, Enocitabine, Epothilone, Eribulin, Everolimus, Exatecan, Exisulind, Ferruginol, Forodesine, Fosfestrol, ICE chemotherapy regimen, IT-101, Imexon, Imiquimod, Indolocarbazole, Irofulven, Laniquidar, Larotaxel, Lenalidomide, Lucanthone, Lurtotecan, Mafosfamide, Mitozolomide, Nafoxidine, Nedaplatin, Olaparib, Ortataxel, PAC-1, Pawpaw, Pixantrone, Proteasome inhibitor, Rebeccamycin, Resiquimod, Rubitecan, SN-38, Salinosporamide A, Sapacitabine, Stanford V, Swainsonine, Talaporfin, Tariquidar, Tegafur-uracil, Temodar, Tesetaxel, Triplatin tetranitrate, Tris(2-chloroethyl)amine, Troxacitabine, Uramustine, Vadimezan, Vinflunine, ZD6126 or Zosuquidar.

Embodiments herein further relate to methods for using a compound or salt of any of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, or pharmaceutical compositions provided herein, in combination with radiation therapy for inhibiting abnormal cell growth or treating the hyperproliferative disorder in the mammal. Techniques for administering radiation therapy are known in the art, and these techniques can be used in the combination therapy described herein. The administration of the compound of the invention in this combination therapy can be determined as described herein.

Radiation therapy can be administered through one of several methods, or a combination of methods, including without limitation external-beam therapy, internal radiation therapy, implant radiation, stereotactic radiosurgery, systemic radiation therapy, radiotherapy and permanent or temporary interstitial brachytherapy. The term “brachytherapy,” as used herein, refers to radiation therapy delivered by a spatially confined radioactive material inserted into the body at or near a tumor or other proliferative tissue disease site. The term is intended without limitation to include exposure to radioactive isotopes (e.g., At-211, I-131, I-125, Y-90, Re-186, Re-188, Sm-153, Bi-212, P-32, and radioactive isotopes of Lu). Suitable radiation sources for use as a cell conditioner of the present invention include both solids and liquids. By way of non-limiting example, the radiation source can be a radionuclide, such as I-125, I-131, Yb-169, Ir-192 as a solid source, I-125 as a solid source, or other radionuclides that emit photons, beta particles, gamma radiation, or other therapeutic rays. The radioactive material can also be a fluid made from any solution of radionuclide(s), e.g., a solution of I-125 or I-131, or a radioactive fluid can be produced using a slurry of a suitable fluid containing small particles of solid radionuclides, such as Au-198, Y-90. Moreover, the radionuclide(s) can be embodied in a gel or radioactive micro spheres.

The compounds or pharmaceutical compositions herein are also used in combination with an amount of one or more substances selected from anti-angiogenesis agents, signal transduction inhibitors, antiproliferative agents, glycolysis inhibitors, or autophagy inhibitors.

Anti-angiogenesis agents, such as MMP-2 (matrix-metalloproteinase 2) inhibitors, MMP-9 (matrix-metalloprotienase 9) inhibitors, and COX-11 (cyclooxygenase 11) inhibitors, can be used in conjunction with a compound of the invention and pharmaceutical compositions described herein. Anti-angiogenesis agents include, for example, rapamycin, temsirolimus (CCI-779), everolimus (RAD001), sorafenib, sunitinib, and bevacizumab. Examples of useful COX-II inhibitors include CELEBREX™ (alecoxib), valdecoxib, and rofecoxib. Examples of useful matrix metalloproteinase inhibitors are described in WO 96/33172 (published Oct. 24, 1996), WO 96/27583 (published Mar. 7, 1996), European Patent Application No. 97304971.1 (filed Jul. 8, 1997), European Patent Application No. 99308617.2 (filed Oct. 29, 1999), WO 98/07697 (published Feb. 26, 1998), WO 98/03516 (published Jan. 29, 1998), WO 98/34918 (published Aug. 13, 1998), WO 98/34915 (published Aug. 13, 1998), WO 98/33768 (published Aug. 6, 1998), WO 98/30566 (published Jul. 16, 1998), European Patent Publication 606,046 (published Jul. 13, 1994), European Patent Publication 931, 788 (published Jul. 28, 1999), WO 90/05719 (published May 31, 1990), WO 99/52910 (published Oct. 21, 1999), WO 99/52889 (published Oct. 21, 1999), WO 99/29667 (published Jun. 17, 1999), PCT International Application No. PCT/IB98/01113 (filed Jul. 21, 1998), European Patent Application No. 99302232.1 (filed Mar. 25, 1999), Great Britain Patent Application No. 9912961.1 (filed Jun. 3, 1999), U.S. Provisional Application No. 60/148,464 (filed Aug. 12, 1999), U.S. Pat. No. 5,863,949 (issued Jan. 26, 1999), U.S. Pat. No. 5,861,510 (issued Jan. 19, 1999), and European Patent Publication 780,386 (published Jun. 25, 1997), all of which are incorporated herein in their entireties by reference. Preferred MMP-2 and MMP-9 inhibitors are those that have little or no activity inhibiting MMP-1. More preferred, are those that selectively inhibit MMP-2 and/or AMP-9 relative to the other matrix-metalloproteinases (e.g., MAP-1, MMP-3, MMP-4, MMP-5, MMP-6, MMP-7, MMP-8, MMP-10, MMP-11, MMP-12, and MMP-13). Some specific examples of MMP inhibitors useful in the invention are AG-3340, RO 32-3555, and RS 13-0830.

Autophagy inhibitors include, but are not limited to chloroquine, 3-methyladenine, hydroxychloroquine (Plaquenil™), bafilomycin A1,5-amino-4-imidazole carboxamide riboside (AICAR), okadaic acid, autophagy-suppressive algal toxins which inhibit protein phosphatases of type 2A or type 1, analogues of cAMP, and drugs which elevate cAMP levels such as adenosine, LY204002, N6-mercaptopurine riboside, and vinblastine. In addition, antisense or siRNA that inhibits expression of proteins including but not limited to ATG5 (which are implicated in autophagy), may also be used.

In some embodiments, the compounds described herein are formulated or administered in conjunction with liquid or solid tissue barriers also known as lubricants. Examples of tissue barriers include, but are not limited to, polysaccharides, polyglycans, seprafilm, interceed and hyaluronic acid.

In some embodiments, medicaments which are administered in conjunction with the compounds described herein include any suitable drugs usefully delivered by inhalation for example, analgesics, e.g., codeine, dihydromorphine, ergotamine, fentanyl or morphine; anginal preparations, e.g., diltiazem; antiallergics, e.g., cromoglycate, ketotifen or nedocromil; anti-infectives, e.g., cephalosporins, penicillins, streptomycin, sulphonamides, tetracyclines or pentamidine; antihistamines, e.g., methapyrilene; anti-inflammatories, e.g., beclomethasone, flunisolide, budesonide, tipredane, triamcinolone acetonide or fluticasone; antitussives, e.g., noscapine; bronchodilators, e.g., ephedrine, adrenaline, fenoterol, formoterol, isoprenaline, metaproterenol, phenylephrine, phenylpropanolamine, pirbuterol, reproterol, rimiterol, salbutamol, salmeterol, terbutalin, isoetharine, tulobuterol, orciprenaline or (−)-4-amino-3,5-dichloro-α-[[[6-[2-(2-pyridinyl)ethoxy]hexyl]-amino]methyl]benzenemethanol; diuretics, e.g., amiloride; anticholinergics e.g., ipratropium, atropine or oxitropium; hormones, e.g., cortisone, hydrocortisone or prednisolone; xanthines e.g., aminophylline, choline theophyllinate, lysine theophyllinate or theophylline; and therapeutic proteins and peptides, e.g., insulin or glucagon. It will be clear to a person skilled in the art that, where appropriate, the medicaments are used in the form of salts (e.g., as alkali metal or amine salts or as acid addition salts) or as esters (e.g., lower alkyl esters) or as solvates (e.g., hydrates) to optimize the activity and/or stability of the medicament.

Other exemplary therapeutic agents useful for a combination therapy include but are not limited to agents as described above, radiation therapy, hormone antagonists, hormones and their releasing factors, thyroid and antithyroid drugs, estrogens and progestins, androgens, adrenocorticotropic hormone; adrenocortical steroids and their synthetic analogs; inhibitors of the synthesis and actions of adrenocortical hormones, insulin, oral hypoglycemic agents, and the pharmacology of the endocrine pancreas, agents affecting calcification and bone turnover: calcium, phosphate, parathyroid hormone, vitamin D, calcitonin, vitamins such as water-soluble vitamins, vitamin B complex, ascorbic acid, fat-soluble vitamins, vitamins A, K, and E, growth factors, cytokines, chemokines, muscarinic receptor agonists and antagonists; anticholinesterase agents; agents acting at the neuromuscular junction and/or autonomic ganglia; catecholamines, sympathomimetic drugs, and adrenergic receptor agonists or antagonists; and 5-hydroxytryptamine (5-HT, serotonin) receptor agonists and antagonists.

Other suitable therapeutic agents for coadministration with compounds herein also include agents for pain and inflammation such as histamine and histamine antagonists, bradykinin and bradykinin antagonists, 5-hydroxytryptamine (serotonin), lipid substances that are generated by biotransformation of the products of the selective hydrolysis of membrane phospholipids, eicosanoids, prostaglandins, thromboxanes, leukotrienes, aspirin, nonsteroidal anti-inflammatory agents, analgesic-antipyretic agents, agents that inhibit the synthesis of prostaglandins and thromboxanes, selective inhibitors of the inducible cyclooxygenase, selective inhibitors of the inducible cyclooxygenase-2, autacoids, paracrine hormones, somatostatin, gastrin, cytokines that mediate interactions involved in humoral and cellular immune responses, lipid-derived autacoids, eicosanoids, β-adrenergic agonists, ipratropium, glucocorticoids, methylxanthines, sodium channel blockers, opioid receptor agonists, calcium channel blockers, membrane stabilizers and leukotriene inhibitors.

Additional therapeutic agents contemplated for co-administration with compounds and compositions herein include diuretics, vasopressin, agents affecting the renal conservation of water, rennin, angiotensin, agents useful in the treatment of myocardial ischemia, anti-hypertensive agents, angiotensin converting enzyme inhibitors, β-adrenergic receptor antagonists, agents for the treatment of hypercholesterolemia, and agents for the treatment of dyslipidemia.

Other therapeutic agents contemplated for co-administration with compounds and compositions herein include drugs used for control of gastric acidity, agents for the treatment of peptic ulcers, agents for the treatment of gastroesophageal reflux disease, prokinetic agents, antiemetics, agents used in irritable bowel syndrome, agents used for diarrhea, agents used for constipation, agents used for inflammatory bowel disease, agents used for biliary disease, agents used for pancreatic disease. Therapeutic agents used to treat protozoan infections, drugs used to treat Malaria, Amebiasis, Giardiasis, Trichomoniasis, Trypanosomiasis, and/or Leishmaniasis, and/or drugs used in the chemotherapy of helminthiasis. Other therapeutic agents include antimicrobial agents, sulfonamides, trimethoprim-sulfamethoxazole quinolones, and agents for urinary tract infections, penicillins, cephalosporins, and other, β-lactam antibiotics, an agent comprising an aminoglycoside, protein synthesis inhibitors, drugs used in the chemotherapy of tuberculosis, Mycobacterium avium complex disease, and leprosy, antifungal agents, antiviral agents including nonretroviral agents and antiretroviral agents.

Examples of therapeutic antibodies that can be combined with a compound herein include but are not limited to anti-receptor tyrosine kinase antibodies (cetuximab, panitumumab, trastuzumab), anti CD20 antibodies (rituximab, tositumomab), and other antibodies such as alemtuzumab, bevacizumab, and gemtuzumab.

Moreover, therapeutic agents used for immunomodulation, such as immunomodulators, immunosuppressive agents, tolerogens, and immunostimulants are contemplated by the methods herein. In addition, therapeutic agents acting on the blood and the blood-forming organs, hematopoietic agents, growth factors, minerals, and vitamins, anticoagulant, thrombolytic, and antiplatelet drugs.

For treating renal carcinoma, one may combine a compound of the present invention with sorafenib and/or avastin. For treating an endometrial disorder, one may combine a compound of the present invention with doxorubincin, taxotere (taxol), and/or cisplatin (carboplatin). For treating ovarian cancer, one may combine a compound of the present invention with cisplatin (carboplatin), taxotere, doxorubincin, topotecan, and/or tamoxifen. For treating breast cancer, one may combine a compound of the present invention with taxotere (taxol), gemcitabine (capecitabine), tamoxifen, letrozole, tarceva, lapatinib, PD0325901, avastin, herceptin, OSI-906, and/or OSI-930. For treating lung cancer, one may combine a compound of the present invention with taxotere (taxol), gemcitabine, cisplatin, pemetrexed, Tarceva, PD0325901, and/or avastin.

Further therapeutic agents that can be combined with a compound herein are found in Goodman and Gilman's “The Pharmacological Basis of Therapeutics” Tenth Edition edited by Hardman, Limbird and Gilman or the Physician's Desk Reference, both of which are incorporated herein by reference in their entirety.

The compounds described herein may be used in combination with the agents disclosed herein or other suitable agents, depending on the condition being treated. Hence, in some embodiments the one or more compounds herein will be co-administered with other agents as described above. When used in combination therapy, the compounds described herein are administered with the second agent simultaneously or separately. This administration in combination can include simultaneous administration of the two agents in the same dosage form, simultaneous administration in separate dosage forms, and separate administration. That is, a compound described herein and any of the agents described above can be formulated together in the same dosage form and administered simultaneously. Alternatively, a compound of the invention and any of the agents described above can be simultaneously administered, wherein both the agents are present in separate formulations. In another alternative, a compound of the present invention can be administered just followed by and any of the agents described above, or vice versa. In some embodiments of the separate administration protocol, a compound of the invention and any of the agents described above are administered a few minutes apart, or a few hours apart, or a few days apart.

In some embodiments, a compound described herein is co-administered with another therapeutic agent effective in treating leukemia and/or other cancers. In some embodiments, a compound described herein is co-administered with one or more therapeutic agents approved for the treatment of Acute Lymphoblastic Leukemia (ALL), for example: ABITREXATE (Methotrexate), ADRIAMYCIN PFS (Doxorubicin Hydrochloride), ADRIAMYCIN RDF (Doxorubicin Hydrochloride), ARRANON (Nelarabine), Asparaginase Erwinia chrysanthemi, CERUBIDINE (Daunorubicin Hydrochloride), CLAFEN (Cyclophosphamide), CLOFARABINE, CLOFAREX (Clofarabine), CLOLAR (Clofarabine), Cyclophosphamide, Cytarabine, CYTOSAR-U (Cytarabine), CYTOXAN (Cyclophosphamide), Dasatinib, Daunorubicin Hydrochloride, Doxorubicin Hydrochloride, Erwinaze (Asparaginase Erwinia Chrysanthemi), FOLEX (Methotrexate), FOLEX PFS (Methotrexate), GLEEVEC (Imatinib Mesylate), ICLUSIG (Ponatinib Hydrochloride), Imatinib Mesylate, MARQIBO (Vincristine Sulfate Liposome), Methotrexate, METHOTREXATE LPF (Methorexate), MEXATE (Methotrexate), MEXATE-AQ (Methotrexate), Nelarabine, NEOSAR (Cyclophosphamide), ONCASPAR (Pegaspargase), Pegaspargase, Ponatinib Hydrochloride, RUBIDOMYCIN (Daunorubicin Hydrochloride), SPRYCEL (Dasatinib), TARABINE PFS (Cytarabine), VINCASAR PFS (Vincristine Sulfate), Vincristine Sulfate, etc.

In some embodiments, a compound described herein is co-administered with one or more therapeutic agents approved for the treatment of Acute Myeloid Leukemia (AML), for example: ADRIAMYCIN PFS (Doxorubicin Hydrochloride), ADRIAMYCIN RDF (Doxorubicin Hydrochloride), Arsenic Trioxide, CERUBIDINE (Daunorubicin Hydrochloride), CLAFEN (Cyclophosphamide), Cyclophosphamide, Cytarabine, CYTOSAR-U (Cytarabine), CYTOXAN (Cyclophosphamide), Daunorubicin Hydrochloride, Doxorubicin Hydrochloride, NEOSAR (Cyclophosphamide), RUBIDOMYCIN (Daunorubicin Hydrochloride), RYDAPT (Midostaurin), TARABINE PFS (Cytarabine), TRISENOX (Arsenic Trioxide), VINCASAR PFS (Vincristine Sulfate), Vincristine Sulfate, etc.

In some embodiments, a compound described herein is co-administered with one or more therapeutic agents approved for the treatment of Chronic Lymphocytic Leukemia (CLL), for example: Alemtuzumab, AMBOCHLORIN (Chlorambucil), AMBOCLORIN (Chlorambucil), ARZERRA (Ofatumumab), Bendamustine Hydrochloride, CAMPATH (Alemtuzumab), CHLORAMBUCILCLAFEN (Cyclophosphamide), Cyclophosphamide, CYTOXAN (Cyclophosphamide), FLUDARA (Fludarabine Phosphate), Fludarabine Phosphate, LEUKERAN (Chlorambucil), LINFOLIZIN (Chlorambucil), NEOSAR (Cyclophosphamide), Ofatumumab, TREANDA (Bendamustine Hydrochloride), etc.

In some embodiments, a compound described herein is co-administered with one or more therapeutic agents approved for the treatment of Chronic Myelogenous Leukemia (CML), for example: BOSULIF (Bosutinib), Bosutinib, CLAFEN (Cyclophosphamide), Cyclophosphamide, Cytarabine, CYTOSAR-U (Cytarabine), CYTOXAN (Cyclophosphamide), Dasatinib, GLEEVEC (Imatinib Mesylate), ICLUSIG (Ponatinib Hydrochloride), Imatinib Mesylate, NEOSAR (Cyclophosphamide), Nilotinib, Omacetaxine Mepesuccinate, Ponatinib Hydrochloride, SPRYCEL (Dasatinib), SYNRIBO (Omacetaxine Mepesuccinate), TARABINE PFS (Cytarabine), TASIGNA (Nilotinib), etc.

In some embodiments, a compound described herein is co-administered with one or more therapeutic agents approved for the treatment of Meningeal Leukemia, for example: CYTARABINE, CYTOSAR-U (Cytarabine), TARABINE PFS (Cytarabine), etc.

In some embodiments, a compound described herein is co-administered with one or more alkylating agents (e.g., for the treatment of cancer) selected from, for example, nitrogen mustard N-oxide, cyclophosphamide, ifosfamide, thiotepa, ranimustine, nimustine, temozolomide, altretamine, apaziquone, brostallicin, bendamustine, carmustine, estramustine, fotemustine, glufosfamide, mafosfamide, bendamustin, mitolactol, cisplatin, carboplatin, eptaplatin, lobaplatin, nedaplatin, oxaliplatin, and satraplatin.

In some embodiments, a compound described herein is co-administered with one or more anti-metabolites (e.g., for the treatment of cancer) selected from, for example, methotrexate, 6-mercaptopurineriboside, mercaptopurine, 5-fluorouracil, tegafur, doxifluridine, carmofur, cytarabine, cytarabine ocfosfate, enocitabine, gemcitabine, fludarabin, 5-azacitidine, capecitabine, cladribine, clofarabine, decitabine, eflornithine, ethynylcytidine, cytosine arabinoside, hydroxyurea, melphalan, nelarabine, nolatrexed, ocfosf[iota]te, disodium premetrexed, pentostatin, pelitrexol, raltitrexed, triapine, trimetrexate, vidarabine, vincristine, and vinorelbine;

In some embodiments, a compound described herein is co-administered with one or more hormonal therapy agents (e.g., for the treatment of cancer) selected from, for example, exemestane, Lupron, anastrozole, doxercalciferol, fadrozole, formestane, abiraterone acetate, finasteride, epristeride, tamoxifen citrate, fulvestrant, Trelstar, toremifene, raloxifene, lasofoxifene, letrozole, sagopilone, ixabepilone, epothilone B, vinblastine, vinflunine, docetaxel, and paclitaxel;

In some embodiments, a compound described herein is co-administered with one or more cytotoxic topoisomerase inhibiting agents (e.g., for the treatment of cancer) selected from, for example, aclarubicin, doxorubicin, amonafide, belotecan, camptothecin, 10-hydroxycamptothecin, 9-aminocamptothecin, diflomotecan, irinotecan, topotecan, edotecarin, epimbicin, etoposide, exatecan, gimatecan, lurtotecan, mitoxantrone, pirambicin, pixantrone, rubitecan, sobuzoxane, tafluposide, etc.

In some embodiments, a compound described herein is co-administered with one or more anti-angiogenic compounds (e.g., for the treatment of cancer) selected from, for example, acitretin, aflibercept, angiostatin, aplidine, asentar, axitinib, recentin, bevacizumab, brivanib alaninat, cilengtide, combretastatin, DAST, endostatin, fenretinide, halofuginone, pazopanib, ranibizumab, rebimastat, removab, revlimid, sorafenib, vatalanib, squalamine, sunitinib, telatinib, thalidomide, ukrain, and vitaxin.

In some embodiments, a compound described herein is co-administered with one or more antibodies (e.g., for the treatment of cancer) selected from, for example, trastuzumab, cetuximab, bevacizumab, rituximab, ticilimumab, ipilimumab, lumiliximab, catumaxomab, atacicept, oregovomab, and alemtuzumab.

In some embodiments, a compound described herein is co-administered with one or more VEGF inhibitors (e.g., for the treatment of cancer) selected from, for example, sorafenib, DAST, bevacizumab, sunitinib, recentin, axitinib, aflibercept, telatinib, brivanib alaninate, vatalanib, pazopanib, and ranibizumab.

In some embodiments, a compound described herein is co-administered with one or more EGFR inhibitors (e.g., for the treatment of cancer) selected from, for example, cetuximab, panitumumab, vectibix, gefitinib, erlotinib, and Zactima.

In some embodiments, a compound described herein is co-administered with one or more HER2 inhibitors (e.g., for the treatment of cancer) selected from, for example, lapatinib, tratuzumab, and pertuzumab; CDK inhibitor is selected from roscovitine and flavopiridol;

In some embodiments, a compound described herein is co-administered with one or more proteasome inhibitors (e.g., for the treatment of cancer) selected from, for example, bortezomib and carfilzomib.

In some embodiments, a compound described herein is co-administered with one or more serine/threonine kinase inhibitors (e.g., for the treatment of cancer), for example, MEK inhibitors and Raf inhibitors such as sorafenib.

In some embodiments, a compound described herein is co-administered with one or more tyrosine kinase inhibitors (e.g., for the treatment of cancer) selected from, for example, dasatinib, nilotibib, DAST, bosutinib, sorafenib, bevacizumab, sunitinib, AZD2171, axitinib, aflibercept, telatinib, imatinib mesylate, brivanib alaninate, pazopanib, ranibizumab, vatalanib, cetuximab, panitumumab, vectibix, gefitinib, erlotinib, lapatinib, tratuzumab, pertuzumab and midostaurin

In some embodiments, a compound described herein is co-administered with one or more androgen receptor antagonists (e.g., for the treatment of cancer) selected from, for example, nandrolone decanoate, fluoxymesterone, Android, Prostaid, andromustine, bicalutamide, flutamide, apocyproterone, apoflutamide, chlormadinone acetate, Androcur, Tabi, cyproterone acetate, and nilutamide.

In some embodiments, a compound described herein is co-administered with one or more aromatase inhibitors (e.g., for the treatment of cancer) selected from, for example, anastrozole, letrozole, testolactone, exemestane, aminoglutethimide, and formestane.

In some embodiments, a compound described herein is co-administered with one or more other anti-cancer agents including, e.g., alitretinoin, ampligen, atrasentan bexarotene, borte-zomib, bosentan, calcitriol, exisulind, fotemustine, ibandronic acid, miltefosine, mitoxantrone, 1-asparaginase, procarbazine, dacarbazine, hydroxycarbamide, pegaspargase, pentostatin, tazaroten, velcade, gallium nitrate, canfosfamide, darinaparsin, and tretinoin. In a preferred embodiment, the compounds of the present disclosure may be used in combination with chemotherapy (e.g., cytotoxic agents), anti-hormones and/or targeted therapies such as other kinase inhibitors, mTOR inhibitors and angiogenesis inhibitors.

In embodiments in which the compounds and pharmaceutical compositions herein are used for the treatment or prevention of non-cancer diseases and/or conditions, the compounds and pharmaceutical compositions herein may be co-administered with therapeutics and/or therapies known in the field to be appropriate for the treatment of such diseases and/or conditions.

Kits

For use in the therapeutic applications described herein, kits and articles of manufacture are also provided. In some embodiments, such kits comprise a carrier, package, or container that is compartmentalized to receive one or more containers such as vials, tubes, and the like, each of the container(s) comprising one of the separate elements to be used in a method described herein. Suitable containers include, for example, bottles, vials, syringes, and test tubes. The containers are formed from a variety of materials such as glass or plastic.

The articles of manufacture provided herein contain packaging materials. Packaging materials for use in packaging pharmaceutical products include those found in, e.g., U.S. Pat. Nos. 5,323,907, 5,052,558 and 5,033,252. Examples of pharmaceutical packaging materials include, but are not limited to, blister packs, bottles, tubes, inhalers, pumps, bags, vials, containers, syringes, bottles, and any packaging material suitable for a selected formulation and intended mode of administration and treatment. For example, the container(s) includes a compound or salt of any of Formulas (I), (IIa), (IIb), (IIc), (IId), (IIe), (III) or (IV), with any suitable substituents and functional groups disclosed herein, optionally in a composition or in combination with another agent as disclosed herein. The container(s) optionally have a sterile access port (for example the container is an intravenous solution bag or a vial having a stopper pierceable by a hypodermic injection needle). Such kits optionally comprising a compound with an identifying description or label or instructions relating to its use in the methods described herein.

For example, a kit typically includes one or more additional containers, each with one or more of various materials (such as reagents, optionally in concentrated form, and/or devices) desirable from a commercial and user standpoint for use of a compound described herein. Non-limiting examples of such materials include, but not limited to, buffers, diluents, filters, needles, syringes; carrier, package, container, vial and/or tube labels listing contents and/or instructions for use, and package inserts with instructions for use. A set of instructions will also typically be included. A label is optionally on or associated with the container. For example, a label is on a container when letters, numbers or other characters forming the label are attached, molded or etched into the container itself, a label is associated with a container when it is present within a receptacle or carrier that also holds the container, e.g., as a package insert. In addition, a label is used to indicate that the contents are to be used for a specific therapeutic application. In addition, the label indicates directions for use of the contents, such as in the methods described herein. In certain embodiments, the pharmaceutical composition is presented in a pack or dispenser device which contains one or more unit dosage forms containing a compound provided herein. The pack, for example, contains metal or plastic foil, such as a blister pack. Or, the pack or dispenser device is accompanied by instructions for administration. Or, the pack or dispenser is accompanied with a notice associated with the container in form prescribed by a governmental agency regulating the manufacture, use, or sale of pharmaceuticals, which notice is reflective of approval by the agency of the form of the drug for human or veterinary administration. Such notice, for example, is the labeling approved by the U.S. Food and Drug Administration for prescription drugs, or the approved product insert. In some embodiments, compositions containing a compound provided herein formulated in a compatible pharmaceutical carrier are prepared, placed in an appropriate container, and labeled for treatment of an indicated condition.

EXPERIMENTAL

The examples and preparations provided below further illustrate and exemplify the compounds provided herein and methods of preparing such compounds. It is to be understood that the scope of the present invention is not limited in any way by the scope of the following examples and preparations.

2-bromo-3-(2-chlorophenyl)propanoic acid (159-1)

At 0° C., a solution of tert-butyl nitrite (950 uL, 8 mmol, 2 eq) and copper (II) bromide (1.06 g, 4.8 mmol, 1.2 eq) in ACN (20 mL) was added 2-amino-3-(2-chlorophenyl) propanoic acid (796 mg, 4 mmol). Then the reaction mixture was allowed to warm to 25° C. and stirred for 2 hours. Water (20 mL) was added and the reaction mixture was extracted by ethyl acetate (3*20 mL). The organic layer was combined and washed with brine (3*10 mL) and dried over anhydrous sodium sulfate. After removal of solvent, the crude product (780 mg, yield=75%) was used without further purification into the next step.

4-Methoxy-6-nitrobenzo[d]thiazol-2-amine (159-2)

At 5° C., a solution of bromine (5.57 mL, 110 mmol, 1.1 eq) in acetic acid (50 mL) was added slowly to an acetic acid solution (200 mL) of 2-methoxy-4-methylaniline (16.8 g, 100 mmol) and ammonium thiocyanate (11.4 g, 150 mmol, 1.5 eq) under vigorous stirring. After the completion of addition, the reaction mixture was allowed to warm to 25° C. and stirred for 16 hours. Then the reaction mixture was heated to 95° C. and stirred at this temperature for 30 minutes. After the completion monitored by silica gel TLC, the reaction mixture was poured into ice water and basified to pH=11 with ammonium hydroxide (m %=28-30% aqueous solution) under vigorous stirring. Then the suspension was stirred at room temperature for 30 minutes. After filtration, the solid obtained was stirred in methanol/ethyl acetate (v/v=1/1, 200 mL) at room temperature for 1 hour. Then, filtration gave the product (13 g, yield=58%) as a yellow solid. ¹H NMR (600 MHz, DMSO-d₆): δ 8.38 (d, J=2.2 Hz, 1H), 8.15 (s, 2H), 7.64 (d, J=2.1 Hz, 1H), 3.95 (s, 3H). LRMS m/z 226.0 [M+H]⁺.

2-Amino-6-nitrobenzo[d]thiazol-4-ol (159-3)

At −78° C., boron tribromide (19 mL, 200 mmol, 5 eq) was slowly added into a suspension of 4-methoxy-6-nitrobenzo[d]thiazol-2-amine (9.04 g, 40 mmol) in dichloromethane (400 mL) via syringe. Then the reaction mixture was allowed to warm to 25° C. and stirred at this temperature for 48 hours. After the completion monitored by silica gel TLC, the reaction was cooled to 0° C. and quenched with methanol (50 mL). The solvent was removed under vacuum. Then ice water (200 mL) was added under vigorous stirring, ammonium hydroxide (m %=28-30% aqueous solution) was added till pH=8. The mixture was extracted with ethyl acetate (3*200 mL) and the organic layer was dried over anhydrous sodium sulfate. Removal of all volatiles under vacuum gave the crude product (6.1 g, yield=72%) as a dark yellow solid. Then the crude product was used without further purification into the next step. ¹H NMR (600 MHz, DMSO-d₆) δ: 9.06 (s, 2H), 8.33 (s, 1H), 7.65 (s, 1H). LRMS m/z 212.0 [M+H]⁺.

4-((tert-Butyldiphenylsilyl)oxy)-6-nitrobenzo[d]thiazol-2-amine (159-4)

At 0° C., tert-butyldiphenylchlorosilane (7.5 mL, 28.8 mmol, 1 eq) was added into a dimethylformamide (50 mL) solution of 2-amino-6-nitrobenzo[d]thiazol-4-ol (6.1 g, 28.8 mmol) and imidazole (7.8 g, 115 mmol, 4 eq). Then the reaction mixture was allowed to warm to 25° C. and stirred for 5 hours. After the completion monitored by silica gel TLC the reaction mixture was partitioned with ethyl acetate (200 mL) and water (200 mL). The organic layer was washed with brine (3*50 mL) and dried over anhydrous sodium sulfate. After filtration, the reaction mixture was purified by flash chromatography (silica gel, ethyl acetate/hexanes=1/4). The product (8.42 g, yield=65%) was obtained as a yellow solid. ¹H NMR (600 MHz, DMSO-d₆) δ: 8.28 (d, J=2.0 Hz, 1H), 8.17 (s, 2H), 7.74 (d, J=6.9 Hz, 4H), 7.51 (t, J=7.3 Hz, 2H), 7.46 (t, J=7.3 Hz, 4H), 7.10 (d, J=2.2 Hz, 1H), 1.12 (s, 9H). LRMS m/z 450.1 [M+H]⁺.

tert-Butyl (4-((tert-butyldiphenylsilyl)oxy)-6-nitrobenzo[d]thiazol-2-yl)carbamate (159-5)

At 0° C., a solution of 4-((tert-butyldiphenylsilyl)oxy)-6-nitrobenzo[d]thiazol-2-amine (8.42 mg, 18.8 mmol) in dichloromethane (200 mL) was added triethylamine (5.2 mL, 37.6 mmol, 2 eq), 4-dimethylaminopyridine (115 mg, 0.94 mmol, 0.05 eq) and di-tert-tutyl dicarbonate (4.5 g, 20.7 mmol, 1.1 eq) successively under vigorous stirring. Then the reaction mixture was allowed to warm to 25° C. and stirred for 16 hours. After the completion monitored by silica gel TLC, the reaction mixture was purified with flash chromatography (silica gel, ethyl acetate/hexanes=1/9). The product (7.7 g, yield=75%) was obtained as a pale-white solid. ¹H NMR (600 MHz, DMSO-d₆) δ: 12.23 (s, 1H), 8.56 (d, J=1.9 Hz, 1H), 7.75 (d, J=6.9 Hz, 4H), 7.51 (t, J=7.3 Hz, 2H), 7.46 (t, J=7.3 Hz, 4H), 7.18 (d, J=2.1 Hz, 1H), 1.56 (s, 9H), 1.14 (s, 9H). LRMS m/z 550.2 [M+H]⁺.

tert-Butyl (6-amino-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-yl)carbamate (159-6)

At 25° C., zinc powder (6.4 g, 100 mmol, 10 eq) and ammonium chloride (5.4 g, 100 mmol, 10 eq, in 20 mL of water) was added successively into a solution of tert-butyl (4-((tert-butyldiphenylsilyl)oxy)-6-nitrobenzo[d]thiazol-2-yl)carbamate (5.5 g, 10 mmol) in acetone (100 mL). The reaction mixture was stirred at this temperature for 1 hour. Sodium bicarbonate (saturated aqueous solution, 50 mL) and ethyl acetate (100 mL) were added. After continued stirring for 30 minutes, the reaction mixture was then filtered over celite. The organic layer was washed with brine (3*20 mL) and dried over anhydrous sodium sulfate. Removal of the solvents afforded the product (4.8 g, yield=92%) as a white solid. ¹H NMR (600 MHz, DMSO-d₆) δ: 11.27 (s, 1H), 7.76 (d, J=6.8 Hz, 4H), 7.49-7.46 (m, 2H), 7.44 (t, J=7.1 Hz, 4H), 6.52 (d, J=1.4 Hz, 1H), 5.94 (d, J=1.4 Hz, 1H), 4.85 (s, 2H), 1.52 (s, 9H), 1.08 (s, 9H). LRMS m/z 520.2 [M+H]⁺.

tert-Butyl (6-(2-bromo-3-(2-chlorophenyl)propanamido)-4-((tert-butyldiphenylsilyl)oxy) benzo[d]thiazol-2-yl)carbamate (159-7)

To a solution of tert-butyl (6-amino-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-yl)carbamate (630 mg, 1.2 mmol) and N-(3-dimethylaminopropyl)-n′-ethylcarbodiimide hydrochloride (768 mg, 4 mmol) in dichloromethane (10 mL) was added 2-bromo-3-(2-chlorophenyl)propanoic acid (crude˜3 mmol) at 0° C. Then the reaction mixture was allowed to warm to 25° C. and stirred for 16 hours. After the completion monitored by silica gel TLC, the reaction mixture was partitioned with ethyl acetate (30 mL) and water (30 mL). The organic layer was washed with brine (3*10 mL) and dried over anhydrous sodium sulfate. After removal of all volatiles, the reaction mixture was purified with flash chromatography (silica gel, ethyl acetate/hexanes=1/5) to afford the product (630 mg, yield=71%) as an off-white solid. ¹H NMR (600 MHz, DMSO-d₆) δ: 11.65 (s, 1H), 10.17 (s, 1H), 7.85 (d, J=1.6 Hz, 1H), 7.76 (d, J=7.8 Hz, 4H), 7.48 (dd, J=7.6, 5.2 Hz, 2H), 7.44 (t, J=7.1 Hz, 4H), 7.32-7.20 (m, 3H), 6.73 (d, J=1.7 Hz, 1H), 4.73 (t, J=7.5 Hz, 1H), 3.46 (dd, J=14.1, 8.0 Hz, 1H), 3.34-3.31 (m, 1H), 1.54 (s, 9H), 1.10 (s, 9H). LRMS m/z 764.1 [M+H]⁺.

N-(2-Amino-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)-2-bromo-3-(2-chloro phenyl)propanamide (159-8)

At 25° C., trifluoro acetic acid (6 mL) was added into a solution of tert-butyl (6-(2-bromo-3-(2-chlorophenyl)propanamido)-4-((tert-butyldiphenylsilyl)oxy) benzo[d]thiazol-2-yl)carbamate (650 mg, 0.85 mmol) in dichloromethane (30 mL). Then the reaction mixture was stirred for 6 hours. After the completion monitored by silica gel TLC, sodium bicarbonate (saturated aqueous solution) was added to neutralize the reaction mixture. The organic layer was dried over anhydrous sodium sulfate. Removal of the solvents afforded the product (560 mg, yield=99%) as a yellow solid. ¹H NMR (600 MHz, DMSO-d₆) δ: 10.00 (s, 1H), 7.75 (d, J=6.8 Hz, 4H), 7.63 (d, J=1.7 Hz, 1H), 7.49-7.46 (m, 2H), 7.43 (dd, J=8.9, 5.3 Hz, 5H), 7.31 (s, 2H), 7.29-7.25 (m, 1H), 7.23 (d, J=6.2 Hz, 1H), 7.22-7.18 (m, 1H), 6.59 (d, J=1.6 Hz, 1H), 4.71 (t, J=7.5 Hz, 1H), 3.45 (dd, J=14.1, 8.0 Hz, 1H), 3.30 (dd, J=14.1, 6.9 Hz, 1H), 1.08 (s, 9H). LRMS m/z 664.1 [M+H]⁺.

N⁶-(2-bromo-3-(2-chlorophenyl)propyl)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazole-2,6-diamine (159-9)

At 0° C., borane-tetrahydrofuran complex (44.5 mL, 1 M in tetrahydrofuran, 10 eq) was added into a solution of N-(2-amino-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)-2-bromo-3-(2-chloro phenyl)propanamide (2.95 g, 4.45 mmol) in tetrahydrofuran (100 mL). The reaction mixture was allowed to warm to 25° C. and stirred for 16 hours. After the completion monitored by LC-MS, the reaction mixture was cooled to 0° C. Under vigorous stirring, methanol (10 mL) and saturated aqueous solution of ammonium chloride (20 mL) were added dropwise. The mixture was then partitioned with ethyl acetate (100 mL) and water (50 mL), the organic layer was washed with brine (3*20 mL) and dried over anhydrous sodium sulfate. The product (2.8 g, yield=96%) was obtained after the filtration and removal of all volatiles. The crude product was obtained as an off-white solid and used into the next step without further purification. LRMS m/z 650.1 [M+H]⁺.

4-((tert-Butyldiphenylsilyl)oxy)-6-(2-(2-chlorobenzyl)aziridin-1-yl)benzo[d]thiazol-2-amine (159-10)

At 25° C., cesium carbonate (2.8 g, 8.6 mmol, 2 eq) and potassium iodide (250 mg, 1.5 mmol, 0.35 eq) were added into a solution of N⁶-(2-bromo-3-(2-chlorophenyl)propyl)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazole-2,6-diamine (2.8 g, 4.3 mmol) in acetonitrile (150 mL). Then the reaction mixture was heated to 75° C. and stirred for 4 hours. After the completion monitored by LC-MS, the solvent was removed under vacuum. The reaction mixture was partitioned with ethyl acetate (50 mL) and water (50 mL), the organic layer was washed with brine (3*20 mL) and dried over anhydrous sodium sulfate. After removal of all volatiles, the reaction mixture was purified with flash chromatography (silica gel, ethyl acetate/hexanes=1/4) to afford the product (250 mg, yield=62%) as a white solid. LC-MS m/z 570.2 [M+H]⁺.

2-Amino-6-(2-(2-chlorobenzyl)aziridin-1-yl)benzo[d]thiazol-4-ol (159)

At 0° C., tetrabutylammonium fluoride (2.63 mL, 2.63 mmol, 1 M in tetrahydrofuran) was added into a solution of 4-((tert-butyldiphenylsilyl)oxy)-6-(2-(2-chlorobenzyl)aziridin-1-yl)benzo[d]thiazol-2-amine (1.5 g, 2.63 mmol) in tetrahydrofuran (10 mL). Then the reaction mixture was stirred at this temperature for 15 minutes. After the completion monitored by LC-MS, methanol (2 mL) was added and the reaction mixture was purified with flash chromatography (silica gel, methanol/dichloromethane=1/9) to afford the product (550 mg, yield=63%) as a white solid. ¹H NMR (600 MHz, DMSO-d₆) δ: 9.11 (s, 1H), 7.53-7.44 (m, 2H), 7.37-7.28 (m, 2H), 6.98 (s, 2H), 6.55 (d, J=1.9 Hz, 1H), 6.17 (d, J=1.9 Hz, 1H), 3.02 (dd, J=14.1, 6.0 Hz, 1H), 2.92 (dd, J=13.9, 5.5 Hz, 1H), 2.35-2.27 (m, 1H), 2.09 (d, J=3.0 Hz, 1H), 2.03 (d, J=6.2 Hz, 1H). ¹³C NMR (151 MHz, DMSO-d₆) δ: 162.75 (s), 147.36 (s), 136.77 (s), 136.60 (s), 133.03 (s), 132.01 (s), 131.49 (s), 129.17 (s), 128.31 (s), 127.28 (s), 105.11 (s), 102.55 (s), 40.09 (s), 36.16 (s), 33.23 (s). HRMS (ESI) m/z calcd: C₁₆H₁₅ClN₃OS [M+H]⁺ 332.0619; found, 332.0620.

tert-Butyl 7-nitro-1H-indole-1-carboxylate (163-1)

At 0° C., a solution of 7-nitroindole (1.22 g, 7.5 mmol) in dichloromethane (20 mL) was added triethylamine (2.08 mL, 15 mmol, 2 eq), 4-dimethylaminopyridine (46 mg, 0.38 mmol, 0.05 eq) and di-tert-butyl dicarbonate (1.64 g, 7.5 mmol, 1 eq) under vigorous stirring. Then the reaction mixture was allowed to warm to 25° C. and stirred for 1 hour. After the completion monitored by TLC, the reaction mixture was purified with flash chromatography (ethyl acetate/hexanes=1/10). The product was obtained (1.79 g, yield=91%) of was obtained as a yellow solid. LRMS m/z 263.1 [M+H]⁺.

tert-Butyl 7-amino-1H-indole-1-carboxylate (163-2)

At 25° C., zinc powder (1.28 g, 20 mmol, 10 eq) and ammonium chloride (1.08 mg, 20 mmol, 10 eq, in 4 mL of water) was added successively into a solution of tert-butyl 7-nitro-1H-indole-1-carboxylate (524 mg, 2 mmol) in acetone (20 mL). Then the reaction mixture was stirred at this temperature for 30 minutes. After the completion monitored by TLC, the reaction mixture was filtered through celite. Methanol was removed under vacuum to give a residue which was then partitioned with ethyl acetate (30 mL) and water (30 mL). The organic layer was washed with brine (3*10 mL) and dried over anhydrous sodium sulfate. The product (450 mg, yield=97%) was obtained as a colorless gum and used without further purification into the next step. LRMS m/z 233.1 [M+H]⁺.

2,4-Dibromo-6-methoxyaniline (163-3)

At 5° C., a solution of bromine (9.8 mL, 192.5 mmol, 1.1 eq) in dichloromethane (120 mL) was added slowly to a dichloromethane solution (240 mL) of 4-bromo-2-methoxyaniline (35.35 g, 175 mmol) under vigorous stirring. The reaction mixture was kept at this temperature for 2 h. After the completion monitored by TLC, the reaction mixture was poured into ice water and extracted with ethyl acetate (3*200 mL). The organic layer was combined, washed with brine (3*50 mL) and dried over sodium sulfate. Then the reaction mixture was purified by flash column chromatography (ethyl acetate/hexanes (v/v)=5/95). The product (40.3 g, yield=82%) was obtained as a red liquid. ¹H NMR (600 MHz, CDCl₃) δ 7.20 (d, J=1.9 Hz, 1H), 6.84 (d, J=1.8 Hz, 1H), 4.21 (s, 2H), 3.86 (s, 3H). LRMS m/z 280.0 [M+H]⁺.

1-(2,4-Dibromo-6-methoxyphenyl)thiourea (163-5)

At 0° C., benzoylchloride (11.8 mL, 102.1 mmol, 1.1 eq) was added slowly into a suspension of ammonium thiocyanate (7.76 g, 102.1 mmol, 1.1 eq) in acetone (150 mL). The reaction mixture was allowed to warm to 25° C. and stirred for 1 hour. Then, 2,4-dibromo-6-methoxyaniline (26 g, 92.8 mmol) was added and the reaction mixture was stirred for another 1 hour. After the completion monitored by TLC, water (150 mL) was added, the reaction mixture was stirred for another 15 minutes. The precipitation formed was filtered and washed with water (3*50 mL) to afford a light yellow solid. The solid was then added into an aqueous solution of sodium hydroxide (14.85 g, 371.2 mmol, in 150 mL water). The resulting reaction mixture was then stirred at 80° C. for 3 hours. The reaction mixture was cooled, conc. HCl (aq) was added to pH=1. After that, ammonium hydroxide (30% w/w, aq) was added to pH=10 and the mixture were stirred at 10° C. for 30 minutes. The precipitate was filtered, washed with water (25 mL) to give crude compound. The crude product was dried in air and a yellow solid (30.4 g, yield=96%) was obtained and used without further purification into the next step. LRMS m/z 338.9 [M+H]⁺.

6-Bromo-4-methoxybenzo[d]thiazol-2-amine (163-6)

At 0° C., 1-(2,4-dibromo-6-methoxyphenyl)thiourea (20 g, 59 mmol) was added to a stirred suspension of sodium hydride (4.72 g, 118 mmol, 2 eq) in 1-methyl-2-pyrrolidinone (100 mL). Then the reaction mixture was heated to 150° C. and stirred for 10 min. After the completion monitored by TLC, the reaction mixture was cooled in an ice bath. Saturated aqueous ammonium chloride solution was added to neutralize the reaction mixture. The reaction mixture was extracted with ethyl acetate (3*500 mL). The organic layer was washed with brine (3*100 mL). After removing all volatiles, the residue was stirred in ethyl acetate/hexanes (v/v=1/10) for 30 minutes. Then, filtration afforded the product as yellow solid (28 g, yield=92%) and used without further purification into the next step. LRMS m/z 259.0 [M+H]⁺.

2-Amino-6-bromobenzo[d]thiazol-4-ol (163-7)

At 0° C., boron tribromide (21.1 mL, 222 mmol, 5 eq) was slowly added into a suspension of 6-bromo-4-methoxybenzo[d]thiazol-2-amine (11.5 g, 20 mmol) in dichloromethane (300 mL) via syringe. Then the reaction mixture was allowed to warm to 25° C. and stirred for 16 h. After the completion monitored by TLC, methanol (50 mL) was added slowly at 0° C. to quench the reaction. Saturated aqueous sodium bicarbonate was added until pH=6. The suspension was filtered and the filtrate was extracted with ethyl acetate (3*200 mL). The solid and the organic layer were combined and all volatiles were removed under vacuum. Then, the residue was stirred in ethyl acetate/hexanes (v/v=1/10, 200 mL) for 30 minutes. After filtration, the product (10.5 g, yield=97%) was obtained as a yellow solid and used without further purification into the next step. ¹H NMR (600 MHz, DMSO-d₆) δ 10.70 (s, 1H), 8.72 (s, 2H), 7.49 (d, J=1.1 Hz, 1H), 6.99 (d, J=1.0 Hz, 1H). LRMS m/z 245.0 [M+H]⁺.

6-Bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-amine (163-8)

At 0° C., tert-butyldiphenylchlorosilane (1.9 mL, 7.3 mmol, 1 eq) was added into a dimethylformamide (10 mL) solution of 2-amino-6-bromobenzo[d]thiazol-4-ol (1.8 g, 7.3 mmol) and imidazole (1.98 g, 29.2 mmol, 4 eq). Then the reaction mixture was allowed to warm to 25° C. and stirred for 2 hours. The mixture was partitioned with ethyl acetate (30 mL) and water (30 mL), then the organic layer was washed with brine (3*10 mL) and dried over anhydrous sodium sulfate. The reaction mixture was purified by flash chromatography (ethyl acetate/hexanes (v/v)=1/4) to afford the product (2.48 g, yield=70%) a yellow solid. LRMS m/z 483.0 [M+H]⁺.

2-Di-tert-butoxycarbonyl amino-6-bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazole (163-9)

At 0° C., a solution of 6-bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-amine (2.6 g, 5.4 mmol), triethylamine (1.5 mL, 10.8 mmol, 2 eq) and 4-dimethylaminopyridine (33 mg, 0.27 mmol, 0.05 eq) in dichloromethane (20 mL) was added a dichloromethane (20 mL) solution of di-tert-tutyl dicarbonate (2.36 g, 10.8 mmol, 2 eq) dropwise under vigorous stirring. Then the reaction mixture was allowed to warm to 25° C. and stirred for 1 hour. The reaction mixture was purified with flash chromatography (ethyl acetate/hexanes (v/v)=1/10). The product (3 g, yield=81%) was obtained as a yellow solid. LRMS m/z 683.2 [M+H]⁺.

2-(Di-tert-butoxycarbonyl amino)-4-((tert-butyldiphenylsilyl)oxy)-6-(3-hydroxyprop-1-yn-1-yl)benzo[d]thiazole (163-10)

At 25° C., copper (I) iodide (210 mg, 1.1 mmol, 0.10 eq) was added to a mixture of 2-di-tert-butoxycarbonyl amino-6-bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazole (3.6 g, 5.3 mmol), prop-2-yn-1-ol (1.5 mL, 26.5 mmol, 5 eq) and tetrakis(triphenylphosphine) palladium(0) (1.27 g, 1.1 mmol, 0.10 eq) in triethylamine (15 mL). Then the reaction mixture was heated to 80° C. and stirred at this temperature for 4 hours. After the completion monitored by TLC, the reaction mixture was filtered over celite and partitioned with ethyl acetate (10 mL) and water (10 mL). The organic layer was washed with brine (3*5 mL) and dried over anhydrous sodium sulfate. The reaction mixture was purified by flash column chromatography (ethyl acetate/hexanes (v/v)=1/4) to afford the product (2.43 g, yield=70%) as a yellow solid. LRMS m/z 659.2 [M+H]⁺.

3-(2-((Di-tert-butoxycarbonyl)amino)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)prop-2-yn-1-yl methanesulfonate (163-11)

At 0° C., diisopropylethylamine (198 uL, 1.2 mmol, 1.1 eq) was added to a dichloromethane (8 mL) solution of 2-(di-tert-butoxycarbonyl amino)-4-((tert-butyldiphenylsilyl)oxy)-6-(3-hydroxyprop-1-yn-1-yl)benzo[d]thiazole (700 mg, 1.06 mmol). Then, a dichloromethane (2 mL) solution of methylsulfonyl chloride (93 uL, 1.2 mmol, 1.1 eq) was added slowly into the reaction mixture. The reaction mixture was allowed to warm to 25° C. and stirred at this temperature for 1 hour. After the completion monitored by TLC, all volatiles were removed to give a residue. The crude product (700 mg, yield=90%) was obtained as a yellow gum and used without further purification into the next step.

tert-Butyl 7-((3-(2-((di-tert-butoxycarbonyl)amino)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)prop-2-yn-1-yl)amino)-1H-indole-1-carboxylate (163-12)

A solution of 3-(2-((di-tert-butoxycarbonyl)amino)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)prop-2-yn-1-yl methanesulfonate (270 mg, 0.37 mmol) and tert-butyl 7-amino-1H-indole-1-carboxylate (258 mg, 1.11 mmol, 3 eq) in acetonitrile (2 mL) was stirred at 25° C. for 2 days. After the completion monitored by TLC, the reaction mixture was separated with partitioned with ethyl acetate (10 mL) and water (10 mL). The organic layer was washed with brine (3*5 mL) and dried over anhydrous sodium sulfate. The reaction mixture was purified by flash chromatography (ethyl acetate/hexanes=1/10 to 1/0). The product (160 mg, yield=47%) was obtained as a yellow gum. LRMS m/z 873.4 [M+H]⁺.

6-(3-((1H-Indol-7-yl)amino)prop-1-yn-1-yl)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-amine (163-13)

At 25° C., trifluoroacetic acid (1 mL) was added into a solution of tert-butyl 7-((3-(2-((di-tert-butoxycarbonyl)amino)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)prop-2-yn-1-yl)amino)-1H-indole-1-carboxylate (150 mg, 0.17 mmol) in dichloromethane (5 mL). Then the reaction mixture was stirred for 16 h. Saturated aqueous sodium bicarbonate solution was added to neutralize the reaction mixture. The reaction mixture was then partitioned with ethyl acetate (20 mL) and water (20 mL). The organic layer was washed with brine (3*10 mL) and dried over sodium sulfate. The product (70 mg, yield=71%) was obtained as an off-white solid. LRMS m/z 573.2 [M+H]⁺.

6-(3-((1H-Indol-7-yl)amino)prop-1-yn-1-yl)-2-aminobenzo[d]thiazol-4-ol (163)

6-(3-((1H-Indol-7-yl)amino)prop-1-yn-1-yl)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-amine (70 mg, 0.12 mmol) was dissolved in a methanol solution of ammonia (7 M in methanol, 2 mL). Then the reaction mixture was stirred at 25° C. for 16 h. The reaction mixture was purified by flash chromatography (methanol/dichloromethane=1/10). The product (15 mg, yield=37%) was obtained as an off-white solid. ¹H NMR (600 MHz, DMSO-d₆) δ 10.66 (s, 1H), 9.41 (s, 1H), 7.39 (s, 2H), 7.25 (t, J=2.6 Hz, 1H), 7.17 (d, J=1.1 Hz, 1H), 6.90 (d, J=7.8 Hz, 1H), 6.85 (t, J=7.6 Hz, 1H), 6.66 (s, 1H), 6.40 (d, J=7.4 Hz, 1H), 6.36-6.32 (m, 1H), 5.69 (t, J=5.8 Hz, 1H), 4.26 (d, J=5.8 Hz, 2H). ¹³C NMR (151 MHz, DMSO-d₆) δ 165.66 (s), 147.14 (s), 142.00 (s), 133.64 (s), 132.14 (s), 127.81 (s), 125.50 (s), 123.64 (s), 119.88 (s), 115.03 (s), 114.55 (s), 109.61 (s), 101.57 (s), 101.44 (s), 85.99 (s), 82.85 (s), 33.24 (s). HRMS (ESI) m/z calcd: C₁₈H₁₅N₄OS [M+H]⁺ 335.0961; found, 335.0965.

tert-Butyl (3-(vinylsulfonamidomethyl)phenyl)carbamate (199-1)

In a dry vial tert-butyl (3-(aminomethyl)phenyl)carbamate (222 mg, 1 mmol) and DIPEA (358 μL, 2 mmol) were dissolved in dry DCM (8 ml) and the solution was cooled to 0° C. 2-Chloroethanesulfonyl chloride (105 μL, 1 mmol) in DCM (3 mL) was added dropwise. After 2 h all the starting material was consumed. The product was directly purified by column chromatography on silica gel DCM to DCM/MeOH 15:1, affording a pale yellow oil, contaminated with DIPEA. The compound was used for next step as obtained without characterization.

N-(3-aminobenzyl)ethenesulfonamide (199-2)

Crude tert-Butyl (3-(vinylsulfonamidomethyl)phenyl)carbamate was dissolved in dry DCM (6 ml) and the solution was cooled to 0° C. TFA (2 mL) was added and the mixture was left to stir for 3 h. The mixture was evaporated, carefully neutralized with 7N ammonia in MeOH and the product was directly purified by column chromatography on silica gel DCM to DCM/MeOH 12:1, affording a pale yellow oil. Yield for two steps: 108 mg, 51%. ¹H NMR (600 MHz, MeOD) δ 7.05 (t, J=7.7 Hz, 1H), 6.71 (s, 1H), 6.64 (dd, J=13.8, 8.0 Hz, 2H), 6.56 (dd, J=16.5, 10.0 Hz, 1H), 6.11 (d, J=16.6 Hz, 1H), 5.89 (d, J=10.0 Hz, 1H), 4.02 (s, 2H). ¹³C NMR (151 MHz, MeOD) δ 149.0, 139.8, 138.1, 130.2, 126.1, 118.7, 116.0, 115.8, 47.8.

2,4-Dibromo-6-methoxyaniline (199-3)

At 5° C., a solution of bromine (9.8 mL, 192.5 mmol, 1.1 eq) in dichloromethane (120 mL) was added slowly to a dichloromethane solution (240 mL) of 4-bromo-2-methoxyaniline (35.35 g, 175 mmol) under vigorous stirring. The reaction mixture was kept at this temperature for 2 h. After the completion monitored by TLC, the reaction mixture was poured into ice water and extracted with ethyl acetate (3*200 mL). The organic layer was combined, washed with brine (3*50 mL) and dried over sodium sulfate. Then the reaction mixture was purified by flash column chromatography (ethyl acetate/hexanes (v/v)=5/95). The product (40.3 g, yield=82%) was obtained as a red liquid. ¹H NMR (600 MHz, CDCl₃) δ 7.20 (d, J=1.9 Hz, 1H), 6.84 (d, J=1.8 Hz, 1H), 4.21 (s, 2H), 3.86 (s, 3H). LRMS m/z 280.0 [M+H]⁺.

1-(2,4-Dibromo-6-methoxyphenyl)thiourea (199-4, 199-5)

At 0° C., benzoylchloride (11.8 mL, 102.1 mmol, 1.1 eq) was added slowly into a suspension of ammonium thiocyanate (7.76 g, 102.1 mmol, 1.1 eq) in acetone (150 mL). The reaction mixture was allowed to warm to 25° C. and stirred for 1 hour. Then, 2,4-dibromo-6-methoxyaniline (26 g, 92.8 mmol) was added and the reaction mixture was stirred for another 1 hour. After the completion monitored by TLC, water (150 mL) was added, the reaction mixture was stirred for another 15 minutes. The precipitation formed was filtered and washed with water (3*50 mL) to afford a light yellow solid. The solid was then added into an aqueous solution of sodium hydroxide (14.85 g, 371.2 mmol, in 150 mL water). The resulting reaction mixture was then stirred at 80° C. for 3 hours. The reaction mixture was cooled, conc. HCl (aq) was added to pH=1. After that, ammonium hydroxide (30% w/w, aq) was added to pH=10 and the mixture were stirred at 10° C. for 30 minutes. The precipitate was filtered, washed with water (25 mL) to give crude compound. The crude product was dried in air and a yellow solid (30.4 g, yield=96%) was obtained and used without further purification into the next step. LRMS m/z 338.9 [M+H]⁺.

6-Bromo-4-methoxybenzo[d]thiazol-2-amine (199-6)

At 0° C., 1-(2,4-dibromo-6-methoxyphenyl)thiourea (20 g, 59 mmol) was added to a stirred suspension of sodium hydride (4.72 g, 118 mmol, 2 eq) in 1-methyl-2-pyrrolidinone (100 mL). Then the reaction mixture was heated to 150° C. and stirred for 10 min. After the completion monitored by TLC, the reaction mixture was cooled in an ice bath. Saturated aqueous ammonium chloride solution was added to neutralize the reaction mixture. The reaction mixture was extracted with ethyl acetate (3*500 mL). The organic layer was washed with brine (3*100 mL). After removing all volatiles, the residue was stirred in ethyl acetate/hexanes (v/v=1/10) for 30 minutes. Then, filtration afforded the product as yellow solid (28 g, yield=92%) and used without further purification into the next step. LRMS m/z 259.0 [M+H]⁺.

2-Amino-6-bromobenzo[d]thiazol-4-ol (199-7)

At 0° C., boron tribromide (21.1 mL, 222 mmol, 5 eq) was slowly added into a suspension of 6-bromo-4-methoxybenzo[d]thiazol-2-amine (11.5 g, 20 mmol) in dichloromethane (300 mL) via syringe. Then the reaction mixture was allowed to warm to 25° C. and stirred for 16 h. After the completion monitored by TLC, methanol (50 mL) was added slowly at 0° C. to quench the reaction. Saturated aqueous sodium bicarbonate was added until pH=6. The suspension was filtered and the filtrate was extracted with ethyl acetate (3*200 mL). The solid and the organic layer were combined and all volatiles were removed under vacuum. Then, the residue was stirred in ethyl acetate/hexanes (v/v=1/10, 200 mL) for 30 minutes. After filtration, the product (10.5 g, yield=97%) was obtained as a yellow solid and used without further purification into the next step. ¹H NMR (600 MHz, DMSO-d₆) δ 10.70 (s, 1H), 8.72 (s, 2H), 7.49 (d, J=1.1 Hz, 1H), 6.99 (d, J=1.0 Hz, 1H). LRMS m/z 245.0 [M+H]⁺.

6-Bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-amine (199-8)

At 0° C., tert-butyldiphenylchlorosilane (1.9 mL, 7.3 mmol, 1 eq) was added into a dimethylformamide (10 mL) solution of 2-amino-6-bromobenzo[d]thiazol-4-ol (1.8 g, 7.3 mmol) and imidazole (1.98 g, 29.2 mmol, 4 eq). Then the reaction mixture was allowed to warm to 25° C. and stirred for 2 hours. The mixture was partitioned with ethyl acetate (30 mL) and water (30 mL), then the organic layer was washed with brine (3*10 mL) and dried over anhydrous sodium sulfate. The reaction mixture was purified by flash chromatography (ethyl acetate/hexanes (v/v)=1/4) to afford the product (2.48 g, yield=70%) a yellow solid. LRMS m/z 483.0 [M+H]⁺.

2-Di-tert-butoxycarbonyl amino-6-bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazole (199-9)

At 0° C., a solution of 6-bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-amine (2.6 g, 5.4 mmol), triethylamine (1.5 mL, 10.8 mmol, 2 eq) and 4-dimethylaminopyridine (33 mg, 0.27 mmol, 0.05 eq) in dichloromethane (20 mL) was added a dichloromethane (20 mL) solution of di-tert-tutyl dicarbonate (2.36 g, 10.8 mmol, 2 eq) dropwise under vigorous stirring. Then the reaction mixture was allowed to warm to 25° C. and stirred for 1 hour. The reaction mixture was purified with flash chromatography (ethyl acetate/hexanes (v/v)=1/10). The product (3 g, yield=81%) was obtained as a yellow solid. LRMS m/z 683.2 [M+H]⁺.

2-(Di-tert-butoxycarbonyl amino)-4-((tert-butyldiphenylsilyl)oxy)-6-(3-hydroxyprop-1-yn-1-yl)benzo[d]thiazole (199-10)

At 25° C., copper (I) iodide (210 mg, 1.1 mmol, 0.10 eq) was added to a mixture of 2-di-tert-butoxycarbonyl amino-6-bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazole (3.6 g, 5.3 mmol), prop-2-yn-1-ol (1.5 mL, 26.5 mmol, 5 eq) and tetrakis(triphenylphosphine) palladium(0) (1.27 g, 1.1 mmol, 0.10 eq) in triethylamine (15 mL). Then the reaction mixture was heated to 80° C. and stirred at this temperature for 4 hours. After the completion monitored by TLC, the reaction mixture was filtered over celite and partitioned with ethyl acetate (10 mL) and water (10 mL). The organic layer was washed with brine (3*5 mL) and dried over anhydrous sodium sulfate. The reaction mixture was purified by flash column chromatography (ethyl acetate/hexanes (v/v)=1/4) to afford the product (2.43 g, yield=70%) as a yellow solid. LRMS m/z 659.2 [M+H]⁺.

3-(2-((Di-tert-butoxycarbonyl)amino)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)prop-2-yn-1-yl methanesulfonate (199-11)

At 0° C., diisopropylethylamine (198 uL, 1.2 mmol, 1.1 eq) was added to a dichloromethane (8 mL) solution of 2-(di-tert-butoxycarbonyl amino)-4-((tert-butyldiphenylsilyl)oxy)-6-(3-hydroxyprop-1-yn-1-yl)benzo[d]thiazole (700 mg, 1.06 mmol). Then, a dichloromethane (2 mL) solution of methylsulfonyl chloride (93 uL, 1.2 mmol, 1.1 eq) was added slowly into the reaction mixture. The reaction mixture was allowed to warm to 25° C. and stirred at this temperature for 1 hour. After the completion monitored by TLC, all volatiles were removed to give a residue. The crude product (700 mg, yield=90%) was obtained as a yellow gum and used without further purification into the next step.

tert-butyl (4-((tert-butyldiphenylsilyl)oxy)-6-(3-((3-(vinylsulfonamidomethyl)phenyl)amino)prop-1-yn-1-yl)benzo[d]thiazol-2-yl)carbamate (199-12)

The crude 199-11 (mixture of mono- and diBoc compounds, around 0.08 mmol) was dissolved in MeCN (2 mL). N-(3-aminobenzyl)ethenesulfonamide (51 mg, 0.24 mmol) was added and the mixture was left to stir at rt for 72 h. LC-MS showed only traces of the starting material. The product was directly purified by column chromatography on silica gel (DCM to DCM/MeOH 20:1). The obtained compound was deprotected without characterization.

N-(3-((3-(2-amino-4-hydroxybenzo[d]thiazol-6-yl)prop-2-yn-1 yl)amino)benzyl)ethenesulfonamide (199)

Crude 199-12 was dissolved in dry DCM (2 mL) and TFA (0.7 mL) was added at 0° C. After 6 h the mixture was fully concentrated, carefully neutralized with 7N ammonia solution in methanol and concentrated again. The crude compound was dissolved in THF (1.5 mL) and 1M TBAF solution in THF (0.2 mL) was added at 0° C. Both steps were monitored by LC-MS. After full deprotection the mixture was concentrated and the product was directly purified by column chromatography on silica gel (DCM to DCM/MeOH 10:1) afforded the final product as a white solid. Yield 20 mg, 60% starting from 199-10. ¹H NMR (600 MHz, MeOD) δ 7.12-7.06 (m, 3H), 6.86 (d, J=7.5 Hz, 1H), 6.72 (s, 1H), 6.63 (dd, J=16.5, 10.0 Hz, 1H), 6.53 (d, J=7.7 Hz, 1H), 6.15 (d, J=16.6 Hz, 1H), 5.94 (d, J=10.0 Hz, 1H), 4.08 (s, 2H), 3.29 (s, 2H), 3.29 (d, J=6.5 Hz, 2H), 2.61 (t, J=6.5 Hz, 2H). ¹³C NMR (151 MHz, MeOD) δ 171.6, 168.8, 149.9, 148.2, 142.3, 140.4, 137.6, 133.2, 130.2, 126.6, 118.2, 116.6, 115.8, 111.2, 111.1, 106.7, 86.3, 83.9, 40.2, 38.3, 34.8. HRMS (ESI) calculated C₁₉H₁₉N₄O₃S₂ [M+H]⁺ 415.0899, found 415.0894.

3-(4-(((benzyloxy)carbonyl)amino)phenyl)propanoic acid (197-1)

3-(4-Aminophenyl)propanoic acid (412 mg, 2.5 mmol) was dissolved in water (4 mL). NaOH (340 mg, 8.5 mmol) was added followed by CbzCl (0.46 mL, 3.24 mmol) addition at 0° C. After stirring overnight the mixture was washed with ether, cooled and acidified with 1N HCl to pH 2. After stirring for 30 min the product was filtered and dried, affording a pale yellow solid. Yield 359 mg, 48%. LC-MS m/z 300.1 [M+H]⁺

tert-butyl (3-(3-(4-(((benzyloxy)carbonyl)amino)phenyl)propanamido)phenyl)carbamate (197-2)

To a solution of 3-(4-(((benzyloxy)carbonyl)amino)phenyl)propanoic acid (359 mg, 1.2 mmol) in 6 mL of DCM were added HATU (383 mg, 1 mmol), DIPEA (536 μL, 2.5 mmol) and tert-butyl (3-aminophenyl)carbamate (208 mg, 1 mmol). After stirring for 12 h at room temperature, LC-MS showed full conversion. The mixture was diluted with water, extracted 3 times with DCM, concentrated and the product was directly purified by column chromatography on silica gel DCM to DCM/MeOH 20:1 affording a colorless oil that turned solid in the fridge. Used without characterization. LC-MS m/z 490.2 [M+H]⁺

tert-butyl (3-(3-(4-aminophenyl)propanamido)phenyl)carbamate (197-3)

The 0.03M solution of tert-butyl (3-(3-(4-(((benzyloxy)carbonyl)amino)phenyl)propanamido)phenyl)carbamate in MeOH was pumped through the system with 10% Pd/C catalyst (1 mL/min) at 60° C., 2 bar, until LC-MS showed full conversion. The solution was concentrated and the compound was used as obtained without characterization. LC-MS m/z 355.2 [M+H]⁺

tert-butyl (3-(3-(4-acrylamidophenyl)propanamido)phenyl)carbamate (197-4)

Acryloyl chloride (0.16 mL, 2 mmol, 2 equiv) was added to a stirred suspension of potassium carbonate (0.28 g, 2 mmol, 2 equiv) in distilled water (0.5 mL) and acetone (2 mL) at 0° C. under an atmosphere of nitrogen, and then tert-butyl (3-(3-(4-aminophenyl)propanamido)phenyl)carbamate (crude, max. 1 mmol in acetone (1 mL) was added dropwise into the mixture. The suspension was stirred at 0° C., and monitored by TLC. After filtration, the mixture was concentrated under reduced pressure and extracted with EtOAc. The organic layer was dried over MgSO₄, and concentrated, affording a white solid. Used as obtained. LC-MS m/z 410.2 [M+H]⁺

N-(4-(3-((3-aminophenyl)amino)-3-oxopropyl)phenyl)acrylamide (197-5)

Crude tert-butyl (3-(3-(4-acrylamidophenyl)propanamido)phenyl)carbamate was dissolved in dry DCM (9 ml) and the solution was cooled to 0° C. TFA (3 mL) was added and the mixture was left to stir for 3 h. The mixture was evaporated carefully neutralized with ammonia in MeOH and the product was directly purified by column chromatography on silica gel DCM to DCM 1/MeOH 12:1, affording a white crystalline solid. Yield 210 mg, 0.68 mmol, 68% for last 3 steps. ¹H NMR (600 MHz, MeOD) δ 7.53 (d, J=8.0 Hz, 2H), 7.22 (d, J=8.0 Hz, 2H), 7.02-6.97 (m, 2H), 6.76 (d, J=7.5 Hz, 1H), 6.46 (d, J=7.2 Hz, 1H), 6.44-6.38 (m, 2H), 6.34 (dd, J=16.9, 1.5 Hz, 1H), 5.74 (dd, J=10.0, 1.4 Hz, 1H), 2.96 (t, J=7.4 Hz, 2H), 2.62 (t, J=7.6 Hz, 2H). ¹³C NMR (151 MHz, MeOD) δ 173.5, 166.1, 149.3, 140.4, 138.5, 137.9, 132.5, 130.3, 129.8, 127.6, 121.6, 112.7, 111.4, 108.6, 39.8, 32.3.

tert-butyl (6-(3-((3-(3-(4-acrylamidophenyl)propanamido)phenyl)amino)prop-1-yn-1-yl)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-yl)carbamate (197-6)

The crude 199-11 (mixture of mono- and diBoc compounds, around 0.08 mmol) was dissolved in MeCN (2 mL). N-(3-aminobenzyl)ethenesulfonamide (51 mg, 0.24 mmol) was added and the mixture was left to stir at rt for 72 h. LC-MS showed only traces of the starting material. The product was directly purified by column chromatography on silica gel (DCM to DCM/MeOH 20:1). The obtained compound was deprotected without characterization.

N-(4-(3-((3-((3-(2-amino-4-hydroxybenzo[d]thiazol-6-yl)prop-2-yn-1-yl)amino)phenyl)amino)-3-oxopropyl)phenyl)acrylamide (197)

Crude tert-butyl (6-(3-((3-(3-(4-acrylamidophenyl)propanamido)phenyl)amino)prop-1-yn-1-yl)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-yl)carbamate (197-6) was dissolved in dry DCM (2 mL) and TFA (0.7 mL) was added at 0° C. After 6 h the mixture was fully concentrated, carefully neutralized with 7N ammonia solution in methanol and concentrated again. The crude compound was dissolved in THF (1.5 mL) and 1M TBAF solution in THF (0.2 mL) was added at 0° C. Both steps were monitored by LC-MS. After full deprotection the mixture was concentrated and the product was directly purified by column chromatography on silica gel (DCM to DCM/MeOH 10:1) afforded the final product as a white solid. Yield 20 mg, 49% starting from 199-10. ¹H NMR (600 MHz, MeOD) δ 7.52 (d, J=7.9 Hz, 2H), 7.21 (d, J=8.0 Hz, 2H), 7.11 (s, 1H), 7.08 (t, J=8.0 Hz, 1H), 7.02 (s, 1H), 6.81 (d, J=7.6 Hz, 1H), 6.72 (s, 1H), 6.52 (d, J=7.8 Hz, 1H), 6.43-6.30 (m, 2H), 5.73 (d, J=9.9 Hz, 1H), 4.07 (s, 2H), 2.96 (t, J=7.4 Hz, 2H), 2.62 (t, J=7.4 Hz, 2H). ¹³C NMR (151 MHz, MeOD) δ 173.6, 168.8, 166.1, 149.9, 148.2, 142.3, 140.4, 138.5, 137.8, 133.2, 132.5, 130.2, 129.8, 127.6, 121.6, 118.3, 116.6, 115.8, 111.2, 111.1, 106.8, 86.3, 83.9, 39.8, 34.8, 32.3. HRMS (ESI) calculated C₂₈H₂₆N₅O₃S [M+H]⁺ 512.1756, found 512.1752.

tert-butyl (3-(acrylamidomethyl)phenyl)carbamate (237-1)

In a dry vial tert-butyl (3-(aminomethyl)phenyl)carbamate (290 mg, 1.3 mmol) and DIPEA (330 μL, 1.9 mmol) were dissolved in dry DCM (9 ml) and the solution was cooled to 0° C. Acryloyl chloride (114 μL, 1.4 mmol) in DCM (2 mL) was added dropwise. After 2 h all the starting material was consumed. The product was directly purified by column chromatography on silica gel DCM to DCM/MeOH 12:1, affording a pale yellow oil. The compound was deprotected without characterization. LRMS m/z 277.2 [M+H]⁺.

N-(3-aminobenzyl)acrylamide (237-2)

Crude tert-butyl (3-(acrylamidomethyl)phenyl)carbamate was dissolved in dry DCM (6 ml) and the solution was cooled to 0° C. TFA (2 mL) was added and the mixture was left to stir for 4 h. The mixture was evaporated, carefully neutralized with 7N ammonia in MeOH and the product was directly purified by column chromatography on silica gel DCM to DCM/EtOAc 1:9, affording a white solid. Yield 190 mg, 1.18 mmol, 83% for 2 steps. LRMS m/z 177.1 [M+H]⁺. ¹H NMR (600 MHz, MeOD) δ 7.05 (t, J=7.7 Hz, 1H), 6.66 (s, 1H), 6.63-6.60 (m, 2H), 6.31-6.20 (m, 2H), 5.66 (dd, J=9.4, 2.6 Hz, 1H), 4.34 (s, 2H). ¹³C NMR (151 MHz, MeOD) δ 168.0, 149.0, 140.5, 132.1, 130.3, 126.7, 118.4, 115.7, 115.5, 44.3.

2,4-Dibromo-6-methoxyaniline (237-3)

4-bromo-2-methoxyaniline (25 g; 124 mmol) was dissolved in DCM (375 mL) and cooled to 0° C. Bromine (6.4 mL, 124 mmol) in DCM (50 mL) was added dropwise. The mixture was stirred at room temperature overnight. The reaction mixture was washed with water and saturated Na₂CO₃ solution and the product was directly isolated by column chromatography on silica gel (Hex to Hex/EtOAc 15:1) yielding an orange oil that turned solid in the fridge. Yield 28.36 g, 101.29 mmol, 82%. ¹H NMR (600 MHz, CDCl₃) δ 7.20 (d, J=1.9 Hz, 1H), 6.84 (d, J=1.8 Hz, 1H), 4.21 (s, 2H), 3.86 (s, 3H). LRMS m/z 280.0 [M+H]⁺.

N-((2,4-dibromo-6-methoxyphenyl)carbamothioyl)benzamide (237-4)

Benzoyl chloride (12.36 mL, 106.35 mmol) and ammonium thiocyanate (8.47 g, 111.42 mmol) were dissolved in extra dry acetone (250 mL) and mixture was left to stir for 1 h. After that 2,4-dibromo-6-methoxyaniline (28.36 g, 101.29 mmol) was added and the stirring was continued for 2 h. Water (350 mL) was slowly added. The precipitate was filtered, washed with water and hexane/ether 1:1 mixture. The obtained white solid was used without additional purification and characterization. LRMS m/z 442.9 [M+H]⁺.

1-(2,4-Dibromo-6-methoxyphenyl)thiourea (237-5)

Crude N-((2,4-dibromo-6-methoxyphenyl)carbamothioyl)benzamide was added to a solution of NaOH (10 g in 140 mL of water). The resulting reaction mixture was stirred at 80° C. for 3 h. The reaction mixture was cooled, conc. HCl was slowly added to pH=1. After that, conc. aqueous NH₃ was added to pH=10 and the mixture were stirred at 10° C. for 30 min. The precipitate was filtered, washed with water and hexane/ether 1:1 mixture affording a white solid. Yield 31.93 g, 98 mmol, 97% for 2 steps. LRMS m/z 338.9 [M+H]⁺. ¹H NMR (600 MHz, DMSO-d6): δ 8.89 (s, 1H), 7.44 (s, 1H), 7.28 (s, 1H), 6.70-7.70 (br s, 2H), 3.80 (s, 3H). ¹³C NMR (150 MHz, DMSO-d6): δ 171.3, 157.7, 131.1, 128.1, 127.3, 126.0, 115.1, 56.5.

6-Bromo-4-methoxybenzo[d]thiazol-2-amine (237-6)

To a stirred suspension of NaH (60% in mineral oil, 5.88 g, 147 mmol) in NMP (140 mL) at 0° C. was slowly added 1-(2,4-dibromo-6-methoxyphenyl)thiourea (31.93 g, 98 mmol). The reaction mixture was heated up to 160° C. for 2 h. The reaction mixture was cooled in an ice bath. Water was added and the mixture was extracted 3 times with EtOAc. The combined organics was washed 2 times with brine and concentrated. The solid was suspended in ether/hexane mixture and filtered, yielding a creamy solid. NMR showed around 50% demethylation. Was used for full demethylation as obtained. Yield 14.07 g, around 52.7 mmol, 72%. LRMS m/z 259.0 [M+H]⁺. ¹H NMR (600 MHz, DMSO-d₆): δ 7.48 (br s+s, 3H), 6.96 (d, J=1.5 Hz, 1H), 3.84 (s, 3H). ¹³C NMR (150 MHz, DMSO-d₆): δ 165.8, 150.1, 141.4, 133.2, 115.7, 112.3, 111.4, 56.1.

2-Amino-6-bromobenzo[d]thiazol-4-ol (237-7)

To a solution of partially demethylated 6-bromo-4-methoxy-1,3-benzothiazol-2-amine (14.07 g, around 52.7 mmol) in dry DCM (600 mL), was cooled to 0° C. and Boron tribromide (25.5 mL, 5 equiv.) was added. The reaction mixture was stirred overnight at rt. LC-MS showed full conversion. The reaction mixture was cooled to 0° C. and slowly quenched with methanol (250 mL). The mixture was concentrated to around 100-200 mL and neutralized with aqueous saturated solution of NaHCO₃. After extraction with EtOAc (3 times) the product was concentrated, suspended in Hex/EtOAc 20:1 mixture, stirred for 15 min and filtered affording an off-white solid. Yield 10.59 g. The filtrate was concentrated and suspended in Hex/ether 15:1 mixture. The second batch was collected. Total yield 12.46 g, 51.06 mmol, 97%. LRMS m/z 245.0 [M+H]⁺. ¹H NMR (600 MHz, MeOD) δ 7.21 (d, J=1.8 Hz, 1H), 6.84 (d, J=1.8 Hz, 1H). ¹³C NMR (151 MHz, MeOD) δ 168.1, 149.4, 141.2, 134.5, 115.8, 115.4, 114.9.

6-Bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-amine (237-8)

A TBDPSCl (8.07 mL, 31 mmol) solution in DMF (30 mL) was added dropwise to a solution of alcohol (7.4 g, 28.9 mmol 8.1 mmol) and imidazole (4.08 g, 60 mmol) in dry DMF (145 mL) at 0° C. under argon. The reaction mixture was stirred at room temperature overnight. The mixture was diluted by water and extracted 3 times with EtOAc. The combined organics was washed with water and brine and dried over MgSO₄. The crude product was purified by column chromatography on silica gel (Hex to Hex/EtOAc 4:1) affording a white solid. Yield 11.28 g, 23.41 mmol, 81%. LRMS m/z 483.1 [M+H]⁺. ¹H NMR (600 MHz, CDCl₃) δ 7.78 (dd, J=8.1, 1.3 Hz, 4H), 7.47-7.43 (m, 2H), 7.39 (t, J=7.3 Hz, 4H), 7.23 (d, J=1.8 Hz, 1H), 6.63 (d, J=1.8 Hz, 1H), 5.72 (br s, 2H), 1.19 (s, 9H). ¹³C NMR (151 MHz, CDCl₃) δ 164.8, 146.9, 143.2, 135.7, 134.0, 133.0, 130.2, 127.9, 119.9, 116.5, 114.0, 27.1, 20.0.

2-Di-tert-butoxycarbonyl amino-6-bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazole (237-9)

6-bromo-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-amine (7.1 g, 14.7 mmol) was dissolved in dry DCM (70 mL). The mixture was cooled to 0° C. and TEA (6.15 mL, 44.2 mmol), DMAP (90 mg, 0.74 mmol) and Boc anhydride (9.64 g, 44.2 mmol) were added. The mixture was allowed to warm to rt and stirred overnight. The mixture was concentrated and the product was isolated by column chromatography on silica gel (slow gradient Hex to Hex/EtOAc 10:1) affording a white solid. Yield 7.3 g, 10.69 mmol, 73%. LRMS m/z 683.2 [M+H]⁺. ¹H NMR (600 MHz, CDCl₃) δ 7.77 (dd, J=8.0, 1.3 Hz, 4H), 7.47-7.42 (m, 2H), 7.42-7.37 (m, J=12.7, 4.4 Hz, 5H), 6.49 (d, J=1.8 Hz, 1H), 1.60 (s, 18H), 1.16 (s, 9H). ¹³C NMR (151 MHz, CDCl₃) δ 156.4, 149.5, 149.0, 141.0, 136.0, 135.8, 132.5, 130.3, 128.0, 119.7, 116.6, 116.3, 85.5, 28.0, 26.8, 19.9.

2-(Di-tert-butoxycarbonyl amino)-4-((tert-butyldiphenylsilyl)oxy)-6-(3-hydroxyprop-1-yn-1-yl)benzo[d]thiazole (237-10)

At 25° C., CuI (305 mg, 1.6 mmol, 0.15 eq) was added to a mixture of starting material (7.3 g, 10.69 mmol), prop-2-yn-1-ol (3.05 mL, 53 mmol, 5 eq) and Pd(PPh₃)₄ (1.85 g, 1.6 mmol, 0.15 eq) in TEA (105 mL). Then the reaction mixture was heated to 80° C. and stirred at this temperature for 4 h. The mixture was diluted with water, filtered through Celite layer and extracted with EtOAc. The product was directly isolated by column chromatography on silica gel (DCM to DCM/EtOAc 6:1) yielding a white solid. Yield 4.53 g, 6.88 mmol, 64%. LRMS m/z 659.2 [M+H]⁺. ¹H NMR (600 MHz, CDCl₃) δ 7.78-7.75 (m, 4H), 7.42 (t, J=7.4 Hz, 2H), 7.38-7.34 (m, 5H), 6.48 (d, J=1.2 Hz, 1H), 4.33 (s, 2H), 1.60 (s, 18H), 1.14 (s, 9H). ¹³C NMR (151 MHz, CDCl₃) δ 157.4, 149.5, 148.2, 142.3, 135.8, 134.9, 132.7, 130.1, 127.9, 119.2, 118.5, 117.6, 86.8, 85.6, 85.5, 51.7, 28.0, 26.8, 19.9.

3-(2-((Di-tert-butoxycarbonyl)amino)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)prop-2-yn-1-yl methanesulfonate (237-11)

To a DCM solution of the starting material (53 mg; 0.08 mmol/1 mL) DIPEA (15 μL; 0.085 mmol) was added. The reaction mixture was cooled to 0° C. and mesyl chloride (7.5 μL, 0.085 mmol) in DCM (0.2 mL) was added dropwise. Reaction was allowed to stir for 1 hr at 0° C. LC-MS showed full conversion. The reaction was quenched with water, aq. NH₄Cl solution was added and the mixture was extracted 3 times with EtOAc. Combined organic layer was dried with MgSO₄ and concentrated at rt. The obtained crude mesylate was used right away without purification and characterization. LRMS m/z 737.2 [M+H]⁺.

tert-butyl (6-(3-((3-(acrylamidomethyl)phenyl)amino)prop-1-yn-1-yl)-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-2-yl)carbamate (237-12)

The crude mesylate (presumed 0.08 mmol) was dissolved in MeCN (0.5 mL). N-(3-aminobenzyl)acrylamide (42 mg, 0.32 mmol) and were added and the mixture was left to stir at rt for 72 h. LC-MS showed the product and only traces of the starting material. The product was directly purified by column chromatography on silica gel (DCM to DCM/EtOAc 10:1) and deprotected without characterization. LRMS m/z 717.3 [M+H]⁺. One Boc group was partially lost during purification. Compound name and LRMS correspond to mono-Boc compound.

N-(3-((3-(2-amino-4-hydroxybenzo[d]thiazol-6-yl)prop-2-yn-1-yl)amino)benzyl)acrylamide (237)

The crude material was dissolved in dry DCM (2 mL) and TFA (1 mL) was added at 0° C. After stirring for 4 hours the mixture was concentrated, carefully neutralized with 7N ammonia in methanol and concentrated again. 1 mL of THF and 1M THF solution of TBAF (0.16 mL) were added. After 4 h the compound was fully deprotected. The mixture was concentrated and the product was directly isolated by column chromatography on silica gel (DCM to DCM/MeOH 12:1), affording a white solid. Yield 21 mg, 0.047 mmol, 59% for 3 steps. ¹H NMR (600 MHz, DMSO) δ 9.39 (s, 1H), 8.48 (s, 1H), 7.38 (s, 2H), 7.13 (s, 1H), 7.08 (t, J=7.7 Hz, 1H), 6.63 (s, 1H), 6.60 (s, 1H), 6.57 (d, J=7.9 Hz, 1H), 6.52 (d, J=7.2 Hz, 1H), 6.28 (dd, J=17.1, 10.2 Hz, 1H), 6.12 (d, J=17.1 Hz, 1H), 6.04 (t, J=5.5 Hz, 1H), 5.59 (d, J=10.2 Hz, 1H), 4.26 (d, J=5.3 Hz, 2H), 4.06 (d, J=5.8 Hz, 2H). ¹³C NMR (151 MHz, DMSO) δ 165.6, 164.4, 148.0, 147.1, 141.9, 139.7, 132.1, 131.7, 128.8, 125.1, 115.7, 115.1, 115.0, 114.5, 112.0, 111.1, 86.0, 82.4, 42.5, 32.9. HRMS (ESI) calc. for C₂₀H₁₉N₄O₂S (M+H)⁺379.1229, found 379.1228.

N-(2,4-dimethoxybenzyl)ethenesulfonamide (288-1)

At 0° C., triethylamine (1.1 mL, 8 mmol, 4 eq) was added to a DCM (6 mL) solution of (2,4-dimethoxyphenyl) methanamine (300 uL, 2 mmol). Then, 2-chloroethane-1-sulfonyl chloride (210 uL, 2 mmol, 1 eq) was added into the reaction mixture. The reaction mixture was allowed to warm to 25° C. and stirred at this temperature for 16 hours. The reaction mixture was partitioned with dichloromethane (10 mL) and water (10 mL). The organic layer was washed with brine (10 mL) and dried over anhydrous sodium sulfate. The reaction mixture was purified by silica gel flash chromatography (ethyl acetate/hexanes=1/4). The product (400 mg, yield=78%) was obtained as a colorless gum. ¹H NMR (600 MHz, DMSO-d₆) δ 7.45 (d, J=5.6 Hz, 1H), 7.18 (d, J=8.3 Hz, 1H), 6.62 (dd, J=16.6, 10.0 Hz, 1H), 6.53 (d, J=2.1 Hz, 1H), 6.50 (dd, J=8.3, 2.2 Hz, 1H), 6.01 (d, J=16.6 Hz, 1H), 5.92 (d, J=10.0 Hz, 1H), 3.95 (d, J=5.9 Hz, 2H).

3-(3-(trimethylsilyl)prop-2-yn-1-yl)benzaldehyde (288-2)

To a solution of 3-(bromomethyl)benzaldehyde (1 g, 5 mmol), copper (I) iodide (950 mg, 5 mmol, 1 eq), cesium carbonate (1.8 g, 5.5 mmol, 1.1 eq), and tetrabutylammonium iodide (1.85 g, 5 mmol, 1 eq) in dry acetonitrile (20 mL) was added (trimethylsilyl)acetylene (2.11 mL, 15 mmol, 3 eq). The mixture was stirred at 75° C. for 24 hours. The reaction mixture was quenched with saturated aqueous ammonium chloride solution (50 mL) and extracted with ethyl acetate (3*20 mL). The organic layers were washed with brine, dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated in vacuo and purified by column chromatography on silica gel (ethyl acetate/hexanes=1/4). The product (900 mg, yield=83%) was obtained as a colorless liquid. ¹H NMR (600 MHz, DMSO-d₆) δ 10.03-9.99 (m, 1H), 7.88-7.85 (m, 1H), 7.82-7.78 (m, 1H), 7.64 (s, 1H), 7.61-7.56 (m, 1H), 3.85 (d, J=7.1 Hz, 1H), 0.19-0.15 (m, 1H).

(3-(3-(trimethylsilyl)prop-2-yn-1-yl)phenyl)methanol (288-3)

Sodium borohydride (676 mg, 17.78 mmol, 4 eq) was added to a methanol (20 mL) solution of 288-2 (960 mg, 4.44 mmol), and the resulting mixture was stirred for 5 hours at room temperature. The reaction mixture was quenched with saturated aqueous ammonium chloride solution (20 mL) and then partitioned with ethyl acetate (50 mL) and water (50 mL). The organic layer was washed with brine (20 mL), dried over anhydrous sodium sulfate and then concentrated under vacuum. The crude product (960 mg, yield=99%) was obtained as a yellow liquid and used without further purification into the next step. ¹H NMR (600 MHz, DMSO-d₆) δ 7.30-7.25 (m, 2H), 7.18 (d, J=7.5 Hz, 2H), 5.14 (t, J=5.6 Hz, 1H), 4.48 (d, J=5.4 Hz, 2H), 3.68 (s, 2H), 0.15 (s, 9H).

(3-(prop-2-yn-1-yl)phenyl)methanol (288-4)

288-3 (960 mg, 4.4 mmol) was dissolved in methanol (75 mL). Potassium fluoride (2.55 g, 44 mmol, 10 eq) was added and the reaction was stirred for 24 h at 45° C. After cooling to room temperature the reaction was quenched by addition of water (100 mL) and ethyl acetate (100 mL). The aqueous layer was extracted with ethyl acetate (3*50 mL), the combined organic layers were dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The resulting crude product (600 mg, yield=93%) was obtained as a colorless liquid and used without further purification into the next step.

2-Di-tert-butoxycarbonyl amino-(4-((tert-butyldiphenylsilyl)oxy)-6-(3-(3-(hydroxymethyl)phenyl)prop-1-yn-1-yl)benzo[d]thiazole (288-5)

At 25° C., copper (I) iodide (19 mg, 0.1 mmol, 0.1 eq) was added to a mixture of 163-9 (683 mg, 1 mmol), 288-4 (292 mg, 2 mmol, 2 eq) and Pd(PPh₃)₄ (116 mg, 0.1 mmol, 0.1 eq) in triethylamine (5 mL). Then the reaction mixture was heated to 85° C. and stirred at this temperature for 4 hours. The reaction mixture was partitioned with water (20 mL) and ethyl acetate (20 mL). The organic layer was washed with brine (10 mL) and dried over anhydrous sodium sulfate. The reaction mixture was purified by flash column chromatography. The product (85 mg, yield=12%) was obtained as a white solid (ethyl acetate/hexanes=1/2). LRMS m/z 749.3 [M+H]⁺. 2-Di-tert-butoxycarbonyl amino-(4-((tert-butyldiphenylsilyl)oxy)-6-(3-(3-((N-(2,4-dimethoxybenzyl)vinylsulfonamido)methyl)phenyl)prop-1-yn-1-yl)benzo[d]thiazole) (288-6). At 0° C., to a tetrahydrofuran (3 mL) solution of 288-1 (120 mg, 0.16 mmol), 288-5 (41 mg, 0.16 mmol, 1 eq) and triphenylphosphine (63 mg, 0.24 mmol, 1.5 eq) was added DIAD (47 uL, 0.24 mmol, 1.5 eq). Then the reaction mixture was allowed to warm to 25° C. and stirred for 16 hours. The reaction mixture was purified by flash chromatography (ethyl acetate/hexanes=1/4). The product (80 mg, yield=51%) was obtained as a white solid. LRMS m/z 988.4 [M+H]⁺.

N-(3-(3-(2-amino-4-((tert-butyldiphenylsilyl)oxy)benzo[d]thiazol-6-yl)prop-2-yn-1-yl)benzyl)ethenesulfonamide (288-7)

At 0° C., trifluoroacetic acid (1 mL) was added slowly into a solution of 288-6 (80 mg, 0.08 mmol) in dichloromethane (2 mL). Then the reaction mixture was allowed to warm to 25° C. and stirred for 2 hours. Saturated aqueous sodium bicarbonate solution was added to neutralize the reaction mixture. Dichloromethane (5 mL) was added, and the organic layer was washed with saturated aqueous sodium bicarbonate solution (3*5 mL) and dried over sodium sulfate. The reaction mixture was purified by flash chromatography (ethyl acetate/hexanes=1/2). The product (20 mg, yield=31%) was obtained as a colorless gum. LRMS m/z 638.2 [M+H]⁺.

N-(3-(3-(2-amino-4-hydroxybenzo[d]thiazol-6-yl)prop-2-yn-1-yl)benzyl)ethane sulfonamide (288)

At 0° C., TBAF (45 uL, 1 M in tetrahydrofuran, 0.045 mmol, 1.5 eq) was added into a solution of 288-7 (20 mg, 0.03 mmol) in tetrahydrofuran (2 mL). Then the reaction mixture was stirred in ice bath for 1 hour. Methanol (2 mL) was added and the reaction mixture was purified by flash chromatography (ethyl acetate/hexanes=1/2). The product (8 mg, yield=64%) was obtained as a light yellow solid. ¹H NMR (600 MHz, DMSO-d₆) δ 9.40 (s, 1H), 7.82 (t, J=5.5 Hz, 1H), 7.41-7.28 (m, 4H), 7.22 (d, J=11.2 Hz, 2H), 6.68 (dd, J=16.2, 9.7 Hz, 2H), 6.04 (d, J=16.5 Hz, 1H), 5.93 (d, J=10.0 Hz, 1H), 4.07 (d, J=5.9 Hz, 2H), 3.85 (s, 2H).

REFERENCES

The following references, some of which are cited above, are herein incorporated by reference in their entireties.

-   1. Hollink, I. H., M. M. van den Heuvel-Eibrink, S. T.     Arentsen-Peters, M. Pratcorona, S. Abbas, J. E. Kuipers, J. F. van     Galen, H. B. Beverloo, E. Sonneveld, G. J. Kaspers, J. Trka, A.     Baruchel, M. Zimmermann, U. Creutzig, D. Reinhardt, R.     Pieters, P. J. Valk, and C. M. Zwaan, NUP98/NSD1 characterizes a     novel poor prognostic group in acute myeloid leukemia with a     distinct HOX gene expression pattern. Blood, 2011. 118(13): p.     3645-56. -   2. Wagner, E. J. and P. B. Carpenter, Understanding the language of     Lys36 methylation at histone H3. Nat Rev Mol Cell Biol, 2012.     13(2): p. 115-26. -   3. Rogawski, D. S., J. Grembecka, and T. Cierpicki, H3K36     methyltransferases as cancer drug targets: rationale and     perspectives for inhibitor development. Future Med Chem, 2016.     8(13): p. 1589-607. -   4. Thanasopoulou, A., A. Tzankov, and J. Schwaller, Potent     co-operation between the NUP98-NSD1 fusion and the FLT3-ITD mutation     in acute myeloid leukemia induction. Haematologica, 2014. 99(9): p.     1465-71. -   5. Wang, G. G., L. Cai, M. P. Pasillas, and M. P. Kamps, NUP98-NSD1     links H3K36 methylation to Hox-A gene activation and     leukaemogenesis. Nat Cell Biol, 2007. 9(7): p. 804-12. -   6. Morishita, M. and E. di Luccio, Cancers and the NSD family of     histone lysine methyltransferases. Biochim Biophys Acta, 2011.     1816(2): p. 158-63. -   7. Jaju, R. J., C. Fidler, O. A. Haas, A. J. Strickson, F.     Watkins, K. Clark, N.C. Cross, J. F. Cheng, P. D. Aplan, L.     Kearney, J. Boultwood, and J. S. Wainscoat, A novel gene, NSD1, is     fused to NUP98 in the t(5;11)(q35;p15.5) in de novo childhood acute     myeloid leukemia. Blood, 2001. 98(4): p. 1264-7. -   8. Thol, F., B. Kolking, I. H. Hollink, F. Damm, M. M. van den     Heuvel-Eibrink, C. Michel Zwaan, G. Bug, O. Ottmann, K. Wagner, M.     Morgan, W. K. Hofmann, G. Gohring, B. Schlegelberger, J. Krauter, A.     Ganser, and M. Heuser, Analysis of NUP98/NSD1 translocations in     adult AML and MDS patients. Leukemia, 2013. 27(3): p. 750-4. -   9. Shiba, N., H. Ichikawa, T. Taki, M. J. Park, A. Jo, S. Mitani, T.     Kobayashi, A. Shimada, M. Sotomatsu, H. Arakawa, S. Adachi, A.     Tawa, K. Horibe, M. Tsuchida, R. Hanada, I. Tsukimoto, and Y.     Hayashi, NUP98-NSD1 gene fusion and its related gene expression     signature are strongly associated with a poor prognosis in pediatric     acute myeloid leukemia. Genes Chromosomes Cancer, 2013. 52(7): p.     683-93. -   10. Struski, S., S. Lagarde, P. Bories, C. Puiseux, N. Prade, W.     Cuccuini, M. P. Pages, A. Bidet, C. Gervais, M.     Lafage-Pochitaloff, C. Roche-Lestienne, C. Barin, D. Penther, N.     Nadal, I. Radford-Weiss, M. A. Collonge-Rame, B. Gaillard, F.     Mugneret, C. Lefebvre, E. Bart-Delabesse, A. Petit, G. Leverger, C.     Broccardo, I. Luquet, M. Pasquet, and E. Delabesse, NUP98 is     rearranged in 3.8% of pediatric AML forming a clinical and molecular     homogenous group with a poor prognosis. Leukemia, 2017. 31(3): p.     565-572. -   11. Job, B., A. Bernheim, M. Beau-Faller, S. Camilleri-Broet, P.     Girard, P. Hofman, J. Mazieres, S. Toujani, L. Lacroix, J.     Laffaire, P. Dessen, P. Fouret, and L. G. Investigators, Genomic     aberrations in lung adenocarcinoma in never smokers. PLoS One, 2010.     5(12): p. e15145. -   12. Bianco-Miotto, T., K. Chiam, G. Buchanan, S. Jindal, T. K.     Day, M. Thomas, M. A. Pickering, M. A. O'Loughlin, N. K. Ryan, W. A.     Raymond, L. G. Horvath, J. G. Kench, P. D. Stricker, V. R.     Marshall, R. L. Sutherland, S. M. Henshall, W. L. Gerald, H. I.     Scher, G. P. Risbridger, J. A. Clements, L. M. Butler, W. D.     Tilley, D. J. Horsfall, C. Ricciardelli, and B. Australian Prostate     Cancer, Global levels of specific histone modifications and an     epigenetic gene signature predict prostate cancer progression and     development. Cancer Epidemiol Biomarkers Prev, 2010. 19(10): p.     2611-22. -   13. Kassambara, A., B. Klein, and J. Moreaux, MMSET is overexpressed     in cancers: link with tumor aggressiveness. Biochem Biophys Res     Commun, 2009. 379(4): p. 840-5. -   14. Hudlebusch, H. R., E. Santoni-Rugiu, R. Simon, E.     Ralfkiaer, H. H. Rossing, J. V. Johansen, M. Jorgensen, G. Sauter,     and K. Helin, The histone methyltransferase and putative oncoprotein     MMSET is overexpressed in a large variety of human tumors. Clin     Cancer Res, 2011. 17(9): p. 2919-33. -   15. Keats, J. J., T. Reiman, C. A. Maxwell, B. J. Taylor, L. M.     Larratt, M. J. Mant, A. R. Belch, and L. M. Pilarski, In multiple     myeloma, t(4;14)(p16;q32) is an adverse prognostic factor     irrespective of FGFR3 expression. Blood, 2003. 101(4): p. 1520-9. -   16. Lauring, J., A. M. Abukhdeir, H. Konishi, J. P. Garay, J. P.     Gustin, Q. Wang, R. J. Arceci, W. Matsui, and B. H. Park, The     multiple myeloma associated MMSET gene contributes to cellular     adhesion, clonogenic growth, and tumorigenicity. Blood, 2008.     111(2): p. 856-64. -   17. Asangani, I. A., B. Ateeq, Q. Cao, L. Dodson, M. Pandhi, L. P.     Kunju, R. Mehra, R. J. Lonigro, J. Siddiqui, N. Palanisamy, Y. M.     Wu, X. Cao, J. H. Kim, M. Zhao, Z. S. Qin, M. K. Iyer, C. A.     Maher, C. Kumar-Sinha, S. Varambally, and A. M. Chinnaiyan,     Characterization of the EZH2-MMSET histone methyltransferase     regulatory axis in cancer. Mol Cell, 2013. 49(1): p. 80-93. -   18. Angrand, P. O., F. Apiou, A. F. Stewart, B. Dutrillaux, R.     Losson, and P. Chambon, NSD3, a new SET domain-containing gene, maps     to 8p12 and is amplified in human breast cancer cell lines.     Genomics, 2001. 74(1): p. 79-88. -   19. Taketani, T., T. Taki, H. Nakamura, M. Taniwaki, J. Masuda,     and Y. Hayashi, NUP98-NSD3 fusion gene in radiation-associated     myelodysplastic syndrome with t(8;11)(p11;p15) and expression     pattern of NSD family genes. Cancer Genet Cytogenet, 2009.     190(2): p. 108-12. -   20. Morishita, M. and E. di Luccio, Structural insights into the     regulation and the recognition of histone marks by the SET domain of     NSD1. Biochem Biophys Res Commun, 2011. 412(2): p. 214-9. -   21. Morishita, M., D. Mevius, and E. di Luccio, In vitro histone     lysine methylation by NSD1, NSD2/MMSET/WHSC1 and NSD3/WHSC1L. BMC     Struct Biol, 2014. 14: p. 25. -   22. Vougiouklakis, T., R. Hamamoto, Y. Nakamura, and V. Saloura, The     NSD family of protein methyltransferases in human cancer.     Epigenomics, 2015. 7(5): p. 863-74. -   23. Drake, K. M., V. G. Watson, A. Kisielewski, R. Glynn, and A. D.     Napper, A sensitive luminescent assay for the histone     methyltransferase NSD1 and other SAM-dependent enzymes. Assay Drug     Dev Technol, 2014. 12(5): p. 258-71. -   24. Qiao, Q., Y. Li, Z. Chen, M. Wang, D. Reinberg, and R. M. Xu,     The structure of NSD1 reveals an autoregulatory mechanism underlying     histone H3K36 methylation. J Biol Chem, 2011. 286(10): p. 8361-8. 

The invention claimed is:
 1. A composition comprising a compound of Formula (IIb):

or a salt thereof; wherein X is CH₂ or NH; wherein R² is NH₂, C₁-C₄ alkyl, C₁-C₄ haloalkyl, C₁-C₄ dihaloalkyl, C₁-C₄ trihaloalkyl, and C₁-C₄ aminoalkyl; wherein R⁴ is selected from H, halogen, OH, OCH₃, OCH₂CH₃, CH₂OH, NH₂, CH₂NH₃, NHCH₃, CH₃, CH₂CH₃, CHCH₂, trihalomethyl, trihaloethyl, dihalomethyl, dihaloethyl, halomethyl, and haloethyl; wherein R⁵ is selected from H, CH₃, CH₂CH₃, OH, OCH₃, NH₂, and halogen; wherein Z is NH, NCH₃, S, O, CH₂, or is absent; wherein A is selected from a six-member aryl or heteroaryl ring, a heteroaryl bicyclic ring system comprising a five-member ring and a six-member ring, or absent; wherein A, when present, is unsubstituted or substituted with one or more of halogen, OH, OCH₃, OCH₂CH₃, OCH(CH₃)₂, OCH₂CH(CH₃)₂, CH₂OH, CH₂OCH₃, OCF₃, OCH₂CF₃, NH₂, CH₂NH₃, NHCH₃, CH₃, C₂CH₃, CHCH₂, CH₂CH(CH₃)₂, SO₂CHCH₂, NO₂, amide, trihalomethyl, trihaloethyl, dihalomethyl, dihaloethyl, halomethyl, and haloethyl; wherein L is present or absent and is a 1-9 member alkyl, alkenyl, alkynyl, heteroalkyl, aminoalkyl, or amidealkyl chain optionally comprising one or more heteroatoms; wherein Y is alkylacrylamide, alkylacrylimide, propenal, 3-buten-2-one, acrylamide, vinyl sulfonamide, propynamide, ethyl propenoate, propenanamide, propenenitrile, nitroethylene, or absent; wherein R⁷ is H, D, halogen, OH, NH₂, CH₃.
 2. The composition of claim 1, where the compound is selected from


3. The composition of claim 1, wherein R2, R4, R5, R7, Z, A, L, and Y comprise any combination of the substituents depicted in the compounds


4. The composition of claim 1, wherein A is selected from phenyl, indole, benzoisothiazole, benzothiophene, and benzoxazole.
 5. The composition of claim 1, wherein R⁵ is F.
 6. The composition of claim 1, wherein R⁷ is F. 